diff --git a/composeApp/build.gradle.kts b/composeApp/build.gradle.kts
index c4f11fb..81d5919 100644
--- a/composeApp/build.gradle.kts
+++ b/composeApp/build.gradle.kts
@@ -53,6 +53,8 @@ kotlin {
             implementation(libs.koin.compose)
             implementation(libs.koin.compose.viewmodel)
             implementation(libs.koin.compose.viewmodel.navigation)
+            implementation(libs.bundles.voyager)
+            implementation(libs.cafe.voyager.koin)
 
         }
         commonTest.dependencies {
diff --git a/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt b/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt
index 57b0fb2..a04c26c 100644
--- a/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt
+++ b/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt
@@ -6,7 +6,6 @@ import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.tooling.preview.Preview
-import org.koin.androidx.compose.koinViewModel
 import androidx.core.view.WindowCompat
 import android.view.WindowManager
 import androidx.core.view.WindowInsetsCompat
@@ -21,8 +20,7 @@ class MainActivity : ComponentActivity() {
 
 
         setContent {
-            val sharedViewModel: SharedViewModel = koinViewModel()
-            App(sharedViewModel = sharedViewModel)
+            App()
         }
     }
     private fun hideSystemBar() {
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/App.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/App.kt
index 59a779b..e44913c 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/App.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/App.kt
@@ -1,65 +1,36 @@
 package mg.dot.feufaro
 
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.background
-import androidx.compose.foundation.gestures.detectTapGestures
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.FlowRow
-import androidx.compose.foundation.layout.Row
+import SharedScreenModel
 import androidx.compose.foundation.layout.RowScope
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.safeContentPadding
-import androidx.compose.foundation.layout.safeDrawing
-import androidx.compose.foundation.layout.windowInsetsPadding
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
 import androidx.compose.runtime.*
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.input.pointer.pointerInput
-import androidx.compose.ui.text.font.FontStyle
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import org.jetbrains.compose.resources.painterResource
-import org.jetbrains.compose.ui.tooling.preview.Preview
 import mg.dot.feufaro.musicXML.MusicXML
-
-import feufaro.composeapp.generated.resources.Res
-import feufaro.composeapp.generated.resources.compose_multiplatform
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
-import mg.dot.feufaro.solfa.LazyVerticalGridTUO
-import mg.dot.feufaro.solfa.Solfa
 import org.koin.compose.koinInject
 import androidx.compose.ui.geometry.Offset
-import androidx.compose.ui.unit.IntOffset
-import androidx.compose.ui.window.Popup
-import kotlin.math.roundToInt
+import cafe.adriel.voyager.navigator.CurrentScreen
+import cafe.adriel.voyager.navigator.Navigator
+import mg.dot.feufaro.viewmodel.SolfaScreenModel
 
 @Composable
-@Preview
-fun App(sharedViewModel: SharedViewModel = SharedViewModel()
-) {
+fun App() {
+
+    Navigator(screen = ScreenSolfa) {
+        CurrentScreen()
+    }
     val fileRepository = koinInject<FileRepository>()
 
     val displayConfigManager = koinInject<DisplayConfigManager>()
     val currentDisplayConfig by displayConfigManager.displayConfig.collectAsState()
     // Load Configurations
     val configScope = CoroutineScope(Dispatchers.Default)
-    var showContextualMenu by remember { mutableStateOf(false)}
-    var menuPosition by remember { mutableStateOf(Offset.Zero)}
+    val sharedScreenModel = koinInject<SharedScreenModel>()
+    val solfaScreenModel = koinInject<SolfaScreenModel>()
 
     LaunchedEffect(Unit) {
         configScope.launch {
@@ -70,12 +41,12 @@ fun App(sharedViewModel: SharedViewModel = SharedViewModel()
             }
         }
     }
-    val solfa = Solfa(sharedViewModel, fileRepository)
+
     LaunchedEffect(currentDisplayConfig) {
         if (currentDisplayConfig.playlist.isNotEmpty()) {
             try {
-                sharedViewModel.setPlaylist(currentDisplayConfig.playlist)
-                solfa.loadNextInPlaylist()
+                sharedScreenModel.setPlaylist(currentDisplayConfig.playlist)
+                solfaScreenModel.loadNextInPlaylist()
             } catch (e: Exception) {
                 println("Error loading playlist : ${e.message}")
             }
@@ -83,116 +54,9 @@ fun App(sharedViewModel: SharedViewModel = SharedViewModel()
     }
 
     val musicXML = MusicXML(fileRepository)
-    // Start App
-    //solfa.parse()
-    MaterialTheme {
-        MaterialTheme {
-            var showContent by remember { mutableStateOf(false) }
-            var gridWidthPx by remember { mutableStateOf(0) }
-            Column(
-                Modifier.fillMaxSize()
-                    .pointerInput(Unit) {
-                        detectTapGestures(
-                            onDoubleTap = {
-                                offset ->
-                                    menuPosition = offset
-                                    showContextualMenu = true
-                            }
-                        )
-                    },
-                horizontalAlignment = Alignment.CenterHorizontally,
-            ) {
-                if (showContextualMenu) {
-                    Popup(
-                        alignment = Alignment.TopStart,
-                        offset = IntOffset(menuPosition.x.roundToInt(),
-                            menuPosition.y.roundToInt()),
-                        onDismissRequest = {
-                            showContextualMenu = false
-                        }
-                    ) {
-                        ContextualMenu(onMenuItemClick = { item ->
-                            println("Clicked: $item")
-                            showContextualMenu = false
-                        })
-                    }
-                }
-                Column(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .weight(1f)
-                        .verticalScroll(rememberScrollState())
-                ) {
-                    val stanza: Int by sharedViewModel.stanza.collectAsState()
-                    FlowRow(
-                        modifier = Modifier.fillMaxWidth()
-                            .windowInsetsPadding(WindowInsets.safeDrawing)
-                            .padding(start = 8.dp, end = 8.dp, top = 8.dp),
-                        horizontalArrangement = Arrangement.spacedBy(16.dp),
-                        verticalArrangement = Arrangement.spacedBy(4.dp)
-                    ) {
-                        val measureString: String by sharedViewModel.measure.collectAsState()
-                        val songTitle: String by sharedViewModel.songTitle.collectAsState()
-                        val songKey: String by sharedViewModel.songKey.collectAsState()
-                        Text(text = songTitle, fontWeight = FontWeight.Bold)
-                        Text(
-                            text = songKey,
-                            modifier = Modifier.background(Color(0xff, 0xea, 0xe7))
-                                .padding(horizontal = 4.dp)
-                        )
-                        Text(text = measureString)
-                        Text(text = "Stanza: $stanza")
-                        val songAuthor: String by sharedViewModel.songAuthor.collectAsState()
-                        val songComposer: String by sharedViewModel.songComposer.collectAsState()
-                        val songRhythm: String by sharedViewModel.songRhythm.collectAsState()
-                        val nbStanzas: Int by sharedViewModel.nbStanzas.collectAsState()
-                        Text(text = songAuthor, fontStyle = FontStyle.Italic)
-                        Text(text = songRhythm)
-                        Text(text = songComposer)
-                        Row() {
-                            for (i in 1..nbStanzas) {
-                                MGButton(
-                                    enabled = (i != stanza.toInt()),
-                                    onClick = {
-                                        sharedViewModel.setStanza(i.toString())
-                                    },
-                                    modifier = Modifier.padding(horizontal = 4.dp)
-                                ) {
-                                    Text("$i")
-                                }
-                            }
-                        }
-                    }
-                    LazyVerticalGridTUO(
-                        sharedViewModel,
-                        gridWidthPx = gridWidthPx,
-                        onGridWidthMeasured = { width -> gridWidthPx = width }
-                    )
-                    MGButton(onClick = {
-                        //showContent = !showContent
-
-                        solfa.loadNextInPlaylist()
-                    }, modifier = Modifier.height(40.dp)) {
-                        val debugData: String by sharedViewModel.data.collectAsState()
-                        Text(debugData)
-                    }
-                    AnimatedVisibility(showContent) {
-                        val greeting = remember { Greeting().greet() }
-                        Column(
-                            Modifier.fillMaxWidth().height(180.dp),
-                            horizontalAlignment = Alignment.CenterHorizontally
-                        ) {
-                            Image(painterResource(Res.drawable.compose_multiplatform), null)
-                            Text("Compose: $greeting")
-                        }
-                    }
-                }
-            }
-        }
-    }
-
 }
 
+
 fun String?.toColor(foreGround: Boolean = false): Color {
     val defaultColor = if (foreGround) {
         "00FFFFFF"
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ContextualMenu.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ContextualMenu.kt
index a312d1a..f64354b 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ContextualMenu.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ContextualMenu.kt
@@ -5,6 +5,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.List
 import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
@@ -26,7 +27,7 @@ fun ContextualMenu (onMenuItemClick: (String) -> Unit){
     ) {
         MenuItem(icon = Icons.Default.Add, text = "+") { onMenuItemClick("Ajouter")}
         MenuItem(icon = Icons.Default.Edit, text = "!") { onMenuItemClick("Modifier")}
-        MenuItem(icon = Icons.Default.List, text = "-") { onMenuItemClick("Liste")}
+        MenuItem(icon = Icons.AutoMirrored.Filled.List, text = "-") { onMenuItemClick("Liste")}
     }
 }
 
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ScreenSolfa.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ScreenSolfa.kt
new file mode 100644
index 0000000..e9f369e
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ScreenSolfa.kt
@@ -0,0 +1,156 @@
+package mg.dot.feufaro
+
+import SharedScreenModel
+import androidx.compose.foundation.background
+import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.safeDrawing
+import androidx.compose.foundation.layout.windowInsetsPadding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.text.font.FontStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.window.Popup
+import mg.dot.feufaro.solfa.LazyVerticalGridTUO
+import kotlin.math.roundToInt
+import cafe.adriel.voyager.core.screen.Screen
+import cafe.adriel.voyager.koin.koinScreenModel
+import mg.dot.feufaro.data.GridTUOData
+import mg.dot.feufaro.viewmodel.SolfaScreenModel
+import java.io.ObjectStreamException
+
+object ScreenSolfa : Screen {
+    @Composable
+    override fun Content() {
+        val solfaScreenModel = koinScreenModel<SolfaScreenModel>()
+        var menuPosition by remember { mutableStateOf(Offset.Zero)}
+        var showContextualMenu by remember { mutableStateOf(false)}
+        var gridWidthPx by remember { mutableStateOf(0) }
+        val sharedScreenModel = koinScreenModel<SharedScreenModel>()
+        val tuoList by sharedScreenModel.tuoList.collectAsState()
+        val measure by sharedScreenModel.measure.collectAsState()
+        val stanza by sharedScreenModel.stanza.collectAsState()
+        val gridTUOData = GridTUOData(measure, tuoList, stanza)
+        Column(
+            Modifier.fillMaxSize()
+                .pointerInput(Unit) {
+                    detectTapGestures(
+                        onDoubleTap = {
+                                offset ->
+                            menuPosition = offset
+                            showContextualMenu = true
+                        }
+                    )
+                },
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            if (showContextualMenu) {
+                Popup(
+                    alignment = Alignment.TopStart,
+                    offset = IntOffset(menuPosition.x.roundToInt(),
+                        menuPosition.y.roundToInt()),
+                    onDismissRequest = {
+                        showContextualMenu = false
+                    }
+                ) {
+                    ContextualMenu(onMenuItemClick = { item ->
+                        println("Clicked: $item")
+                        showContextualMenu = false
+                    })
+                }
+            }
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .weight(1f)
+                    .verticalScroll(rememberScrollState())
+            ) {
+                val stanza: Int by sharedScreenModel.stanza.collectAsState()
+                FlowRow(
+                    modifier = Modifier.fillMaxWidth()
+                        .windowInsetsPadding(WindowInsets.safeDrawing)
+                        .padding(start = 8.dp, end = 8.dp, top = 8.dp),
+                    horizontalArrangement = Arrangement.spacedBy(16.dp),
+                    verticalArrangement = Arrangement.spacedBy(4.dp)
+                ) {
+                    val measureString: String by sharedScreenModel.measure.collectAsState()
+                    val songTitle: String by sharedScreenModel.songTitle.collectAsState()
+                    val songKey: String by sharedScreenModel.songKey.collectAsState()
+                    Text(text = songTitle, fontWeight = FontWeight.Bold)
+                    Text(
+                        text = songKey,
+                        modifier = Modifier.background(Color(0xff, 0xea, 0xe7))
+                            .padding(horizontal = 4.dp)
+                    )
+                    Text(text = measureString)
+                }
+                LazyVerticalGridTUO(
+                    gridTUOData,
+                    gridWidthPx = gridWidthPx,
+                    onGridWidthMeasured = { width -> gridWidthPx = width }
+                )
+                MGButton(onClick = {
+                    //showContent = !showContent
+
+                    solfaScreenModel.loadNextInPlaylist()
+                }, modifier = Modifier.height(40.dp)) {
+                    val debugData: String by sharedScreenModel.data.collectAsState()
+                    Text(debugData)
+                }
+                FlowRow(
+                    modifier = Modifier.fillMaxWidth()
+                        .windowInsetsPadding(WindowInsets.safeDrawing)
+                        .padding(start = 8.dp, end = 8.dp, top = 8.dp),
+                    horizontalArrangement = Arrangement.spacedBy(16.dp),
+                    verticalArrangement = Arrangement.spacedBy(4.dp)
+                ) {
+                    val nbStanzas: Int by sharedScreenModel.nbStanzas.collectAsState()
+                    for (i in 1..nbStanzas) {
+                        MGButton(
+                            enabled = (i != stanza.toInt()),
+                            onClick = {
+                                sharedScreenModel.setStanza(i.toString())
+                            },
+                            modifier = Modifier.padding(horizontal = 4.dp)
+                        ) {
+                            Text("$i")
+                        }
+                    }
+                    Text(text = "Stanza: $stanza")
+                    val songAuthor: String by sharedScreenModel.songAuthor.collectAsState()
+                    val songComposer: String by sharedScreenModel.songComposer.collectAsState()
+                    val songRhythm: String by sharedScreenModel.songRhythm.collectAsState()
+                    Text(text = songAuthor, fontStyle = FontStyle.Italic)
+                    Text(text = songRhythm)
+                    Text(text = songComposer)
+
+                }
+            }
+        }
+    }
+    @Throws(ObjectStreamException::class) // C'est une méthode de sérialisation Java, donc l'exception est nécessaire
+    private fun readResolve(): Any {
+        return this // Toujours retourner l'instance unique de ce singleton
+    }
+}
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/SongNumberInput.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/SongNumberInput.kt
new file mode 100644
index 0000000..42cb0c4
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/SongNumberInput.kt
@@ -0,0 +1,83 @@
+// commonMain/kotlin/mg.dot.feufaro/SongNumberInput.kt
+package mg.dot.feufaro
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.Button
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun SongNumberInput(
+    // Callback appelé lorsque le numéro de chant est validé
+    onSongNumberConfirmed: (Int) -> Unit
+) {
+    // État local pour le texte saisi par l'utilisateur
+    var songNumberText by remember { mutableStateOf("") }
+    // État local pour afficher un message d'erreur
+    var errorMessage by remember { mutableStateOf<String?>(null) }
+
+    Column(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(16.dp)
+    ) {
+        // Champ de texte pour la saisie du numéro de chant
+        OutlinedTextField(
+            value = songNumberText,
+            onValueChange = { newValue ->
+                // N'accepte que les chiffres
+                val filteredValue = newValue.filter { it.isDigit() }
+                // Limite la saisie à 3 chiffres
+                if (filteredValue.length <= 3) {
+                    songNumberText = filteredValue
+                    errorMessage = null // Réinitialise l'erreur si la saisie redevient valide
+                }
+            },
+            label = { Text("Numéro du chant") },
+            placeholder = { Text("Ex: 123") },
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number), // Affiche un clavier numérique
+            isError = errorMessage != null, // Indique visuellement une erreur
+            modifier = Modifier.fillMaxWidth()
+        )
+
+        // Affichage du message d'erreur si présent
+        errorMessage?.let {
+            Text(
+                text = it,
+                color = MaterialTheme.colorScheme.error,
+                style = MaterialTheme.typography.bodySmall,
+                modifier = Modifier.padding(top = 4.dp)
+            )
+        }
+
+        // Bouton de confirmation
+        Button(
+            onClick = {
+                val number = songNumberText.toIntOrNull()
+                if (number == null) {
+                    errorMessage = "Veuillez entrer un nombre valide."
+                } else if (songNumberText.length != 3) {
+                    errorMessage = "Le numéro doit avoir 3 chiffres."
+                } else if (number < 1 || number > 999) { // Exemple de plage valide si besoin
+                    errorMessage = "Le numéro doit être entre 001 et 999."
+                } else {
+                    errorMessage = null
+                    onSongNumberConfirmed(number) // Appelle le callback avec le numéro validé
+                }
+            },
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(top = 16.dp)
+        ) {
+            Text("Confirmer")
+        }
+    }
+}
\ No newline at end of file
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/data/GridTUOData.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/data/GridTUOData.kt
new file mode 100644
index 0000000..4ec83c2
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/data/GridTUOData.kt
@@ -0,0 +1,9 @@
+package mg.dot.feufaro.data
+
+import mg.dot.feufaro.solfa.TimeUnitObject
+
+data class GridTUOData (
+    val measure: String,
+    val tuoList: List<TimeUnitObject>,
+    val stanza: Int
+)
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/di/AppModule.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/di/AppModule.kt
index a8c2b5b..26466c3 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/di/AppModule.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/di/AppModule.kt
@@ -1,11 +1,14 @@
 package mg.dot.feufaro.di
 
+import PlaylistRepository
+import SharedScreenModel
 import mg.dot.feufaro.CommonFileRepository
 import mg.dot.feufaro.FileRepository
-import mg.dot.feufaro.SharedViewModel
 import mg.dot.feufaro.DisplayConfigManager // Importez DisplayConfigManager
 import mg.dot.feufaro.config.AppConfig
 import mg.dot.feufaro.musicXML.MusicXML
+import mg.dot.feufaro.solfa.Solfa
+import mg.dot.feufaro.viewmodel.SolfaScreenModel
 import org.koin.dsl.module
 import org.koin.core.module.dsl.singleOf
 import org.koin.core.module.Module
@@ -18,5 +21,9 @@ val commonModule = module {
     singleOf(::MusicXML)
     single<FileRepository> { CommonFileRepository() }
     single { DisplayConfigManager(fileRepository = get())}
-    viewModel { SharedViewModel() }
+    single { SharedScreenModel(get()) }
+    //viewModel { SharedViewModel() }
+    single { PlaylistRepository() }
+    single { Solfa(get(), get()) }
+    single { SolfaScreenModel(get()) }
 }
\ No newline at end of file
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt
index afe0f98..74765e4 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/Solfa.kt
@@ -1,15 +1,14 @@
 package mg.dot.feufaro.solfa
 
+import SharedScreenModel
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import mg.dot.feufaro.FileRepository
 import mg.dot.feufaro.CommonTools
-import mg.dot.feufaro.SharedViewModel
-//import mg.dot.feufaro.getOpt
 
-class Solfa(val sharedViewModel: SharedViewModel, private val fileRepository: FileRepository) {
+class Solfa(val sharedScreenModel: SharedScreenModel, private val fileRepository: FileRepository) {
     private val T: MutableList<PTemplate> = mutableListOf()
     private val N: MutableList<POneVoiceNote> = mutableListOf()
     private val L: MutableList<POneStanzaLyrics> = mutableListOf()
@@ -40,13 +39,13 @@ class Solfa(val sharedViewModel: SharedViewModel, private val fileRepository: Fi
     private val meta: MutableMap<String, String> = mutableMapOf()
     private val lyricsComment: MutableList<String> = mutableListOf()
     suspend fun nextTimeUnitObject() {
-        val lastTUO = sharedViewModel.lastTUO()
+        val lastTUO = sharedScreenModel.lastTUO()
         nextTIndex++
         if (nextTIndex == 5) {
-            sharedViewModel.doneTUOList()
+            sharedScreenModel.doneTUOList()
         }
         if (T.getOrNull(nextTIndex) == null) {
-            sharedViewModel.doneTUOList()
+            sharedScreenModel.doneTUOList()
             return
         }
         val pTemplate = T[nextTIndex]
@@ -89,19 +88,19 @@ class Solfa(val sharedViewModel: SharedViewModel, private val fileRepository: Fi
             }
         }
         withContext(Dispatchers.Main) {
-            sharedViewModel.addTUO(unitObject)
+            sharedScreenModel.addTUO(unitObject)
         }
         nextTimeUnitObject()
     }
     fun loadSolfa() {
-        val sourceFileName: String = sharedViewModel.currentPlayed()
-        sharedViewModel.reset()
+        val sourceFileName: String = sharedScreenModel.currentPlayed()
+        sharedScreenModel.reset()
         parse(sourceFileName)
     }
     fun loadNextInPlaylist() {
-        val playlist = sharedViewModel.playlist.value
+        val playlist = sharedScreenModel.playlist.value
         if (playlist.isNotEmpty()) {
-            sharedViewModel.playNext()
+            sharedScreenModel.playNext()
             loadSolfa()
         }
     }
@@ -123,8 +122,8 @@ class Solfa(val sharedViewModel: SharedViewModel, private val fileRepository: Fi
             nextNIndex = -1
             nextLIndex = -1
             lyricsComment.clear()
-            sharedViewModel.setStanza("1")
-            sharedViewModel.setNbStanzas(0)
+            sharedScreenModel.setStanza("1")
+            sharedScreenModel.setNbStanzas(0)
             TimeUnitObject.hasMarker(false)
             lines.forEach { line ->
                 run {
@@ -264,11 +263,11 @@ class Solfa(val sharedViewModel: SharedViewModel, private val fileRepository: Fi
                 val metaChunks: List<String> = value.split(REGEX_PARSE_META)
                 metaChunks.forEach { parseMeta(it) }
                 parseMeta(value)
-                sharedViewModel.setMeasure(meta["m"] ?: "")
-                sharedViewModel.setSongTitle(meta["t"] ?: "")
-                sharedViewModel.setSongAuthor(meta["a"] ?: "")
-                sharedViewModel.setSongComposer(meta["h"] ?: "")
-                sharedViewModel.setSongRhythm(meta["r"] ?: "")
+                sharedScreenModel.setMeasure(meta["m"] ?: "")
+                sharedScreenModel.setSongTitle(meta["t"] ?: "")
+                sharedScreenModel.setSongAuthor(meta["a"] ?: "")
+                sharedScreenModel.setSongComposer(meta["h"] ?: "")
+                sharedScreenModel.setSongRhythm(meta["r"] ?: "")
             } else if (key == "L") {
                 loadL(index, value)
             } else if (key == "Y") {
@@ -383,7 +382,7 @@ class Solfa(val sharedViewModel: SharedViewModel, private val fileRepository: Fi
         if ("c" == subKey) {
             val tonality = line.uppercaseFirstMeta()
             meta["C"] = tonality
-            sharedViewModel.setSongKey(tonality)
+            sharedScreenModel.setSongKey(tonality)
             val keyOrigin = CommonTools.tonalityToNumber(tonality)
             val transposeTo = getOpt("transposeto")
             val transposeAsIf = getOpt("transposeasif")
@@ -463,10 +462,10 @@ class Solfa(val sharedViewModel: SharedViewModel, private val fileRepository: Fi
                 }
             }
         } catch (e: Exception) {
-            sharedViewModel.appendData("\nErr: $e")
+            sharedScreenModel.appendData("\nErr: $e")
         }
-        if (stanzaNumber > sharedViewModel.nbStanzas.value) {
-            sharedViewModel.setNbStanzas(stanzaNumber)
+        if (stanzaNumber > sharedScreenModel.nbStanzas.value) {
+            sharedScreenModel.setNbStanzas(stanzaNumber)
         }
     }
     // loadY is a smart lyrics parser for Malagasy language
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
index 3748407..5bc7c78 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
@@ -12,7 +12,6 @@ import androidx.compose.material3.LocalTextStyle
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -29,11 +28,9 @@ import androidx.compose.ui.text.rememberTextMeasurer
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.TextUnit
 import androidx.compose.ui.unit.sp
-import mg.dot.feufaro.SharedViewModel
+import mg.dot.feufaro.data.GridTUOData
 import kotlin.math.min
 
-//import androidx.compose.ui.unit.times
-
 class TimeUnitObject (val pTemplate: PTemplate, val prevTUO: TimeUnitObject?) {
     var mutableNoteVersion: Int by mutableStateOf(0)
     private var lyrics: MutableList<POneStanzaLyrics> = mutableListOf()
@@ -334,13 +331,13 @@ fun AutoResizingText(
 }
 @Composable
 fun LazyVerticalGridTUO(
-    viewModel: SharedViewModel,
+    viewModel: GridTUOData,
     gridWidthPx: Int,
     onGridWidthMeasured: (Int) -> Unit,
     modifier: Modifier = Modifier
 ) {
-    val regexMeasure = Regex("(\\d)/\\d").find(viewModel.measure.value)
-    val tuoList by viewModel.tuoList.collectAsState()
+    val regexMeasure = Regex("(\\d)/\\d").find(viewModel.measure)
+    val tuoList  = viewModel.tuoList
 
     Column(
         modifier = Modifier
@@ -368,7 +365,7 @@ fun LazyVerticalGridTUO(
             GridCells.Fixed(calculatedCols.coerceAtLeast(columnGroup))
 
         }
-        val currentStanza by viewModel.stanza.collectAsState()
+        val currentStanza = viewModel.stanza
 
         LazyVerticalGrid(
             columns = actualColumns,
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/SharedViewModel.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/viewmodel/SharedScreenModel.kt
similarity index 57%
rename from composeApp/src/commonMain/kotlin/mg/dot/feufaro/SharedViewModel.kt
rename to composeApp/src/commonMain/kotlin/mg/dot/feufaro/viewmodel/SharedScreenModel.kt
index 4fa50fe..60e8b2b 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/SharedViewModel.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/viewmodel/SharedScreenModel.kt
@@ -1,38 +1,51 @@
-package mg.dot.feufaro
-
+// commonMain/kotlin/mg/dot/feufaro/viewmodel/SharedScreenModel.kt
+import cafe.adriel.voyager.core.model.ScreenModel
+import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
-import com.rickclephas.kmp.observableviewmodel.ViewModel
-import com.rickclephas.kmp.observableviewmodel.MutableStateFlow
 import mg.dot.feufaro.solfa.TimeUnitObject
 
-open class SharedViewModel(): ViewModel() {
-    private val _data = MutableStateFlow<String>(viewModelScope, "Next ...")
+// Supposons que vous ayez une autre dépendance, par exemple pour gérer les données de la playlist
+class PlaylistRepository {
+    private val _playlists = MutableStateFlow(listOf("Playlist par défaut 1", "Playlist par défaut 2"))
+    val playlists: StateFlow<List<String>> = _playlists.asStateFlow()
+
+    fun addPlaylist(name: String) {
+        _playlists.value = _playlists.value + name
+    }
+}
+
+class SharedScreenModel(
+    private val playlistRepository: PlaylistRepository // Exemple de dépendance partagée
+) : ScreenModel {
+    private val _data = MutableStateFlow<String>("Next ...")
     val data: StateFlow<String> = _data.asStateFlow()
-    private val _measure = MutableStateFlow<String>(viewModelScope, "")
+    private val _measure = MutableStateFlow<String>("")
     val measure: StateFlow<String> = _measure.asStateFlow()
-    private val _songTitle = MutableStateFlow<String>(viewModelScope, "")
+    private val _songTitle = MutableStateFlow<String>("")
     val songTitle: StateFlow<String> = _songTitle.asStateFlow()
-    private val _stanza = MutableStateFlow<Int>(viewModelScope, 0)
+    private val _stanza = MutableStateFlow<Int>( 0)
     val stanza: StateFlow<Int> = _stanza.asStateFlow()
-    private val _songKey = MutableStateFlow<String>(viewModelScope, "")
+    private val _songKey = MutableStateFlow<String>("")
     val songKey: StateFlow<String> = _songKey.asStateFlow()
-    private val _songAuthor = MutableStateFlow<String>(viewModelScope,"")
+    private val _songAuthor = MutableStateFlow<String>("")
     val songAuthor: StateFlow<String> = _songAuthor.asStateFlow()
-    private val _songComposer = MutableStateFlow<String>(viewModelScope,"")
+    private val _songComposer = MutableStateFlow<String>("")
     val songComposer: StateFlow<String> = _songComposer.asStateFlow()
-    private val _songRhythm = MutableStateFlow<String>(viewModelScope,"")
+    private val _songRhythm = MutableStateFlow<String>("")
     val songRhythm: StateFlow<String> = _songRhythm.asStateFlow()
-    private val _nbStanzas = MutableStateFlow<Int>(viewModelScope,0)
+    private val _nbStanzas = MutableStateFlow<Int>(0)
     val nbStanzas: StateFlow<Int> = _nbStanzas.asStateFlow()
-    private var _tuoList = MutableStateFlow<List<TimeUnitObject>>(viewModelScope, emptyList())
+    private var _tuoList =
+        MutableStateFlow<List<TimeUnitObject>>(emptyList())
     val tuoList: StateFlow<List<TimeUnitObject>> = _tuoList.asStateFlow()
-    private var _playlist = MutableStateFlow<List<String>>(viewModelScope, emptyList())
+    private var _playlist =
+        MutableStateFlow<List<String>>(emptyList())
     val playlist: StateFlow<List<String>> = _playlist.asStateFlow()
-    private var _nextPlayed = MutableStateFlow(viewModelScope, -1)
+    private var _nextPlayed = MutableStateFlow(-1)
     val nextPlayed: StateFlow<Int> = _nextPlayed.asStateFlow()
     private val tempTimeUnitObjectList = mutableListOf<TimeUnitObject>()
-    var _hasMarker = MutableStateFlow<Boolean>(viewModelScope, false)
+    var _hasMarker = MutableStateFlow<Boolean>( false)
     val hasMarker: StateFlow<Boolean> = _hasMarker.asStateFlow()
 
     fun appendData(otherData: String) {
@@ -93,4 +106,18 @@ open class SharedViewModel(): ViewModel() {
         val playlistIndex = _nextPlayed.value
         return _playlist.value[playlistIndex]
     }
-}
+    private val _sharedData = MutableStateFlow("Donnée partagée initiale")
+    val sharedData: StateFlow<String> = _sharedData.asStateFlow()
+
+    val playlists: StateFlow<List<String>> = playlistRepository.playlists
+
+    fun updateSharedData(newData: String) {
+        _sharedData.value = newData
+    }
+
+    fun addNewPlaylist(name: String) {
+        playlistRepository.addPlaylist(name)
+    }
+
+    // Vous pouvez ajouter d'autres fonctions pour interagir avec les données partagées
+}
\ No newline at end of file
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/viewmodel/SolfaScreenModel.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/viewmodel/SolfaScreenModel.kt
new file mode 100644
index 0000000..b81124b
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/viewmodel/SolfaScreenModel.kt
@@ -0,0 +1,13 @@
+package mg.dot.feufaro.viewmodel
+
+import cafe.adriel.voyager.core.model.ScreenModel
+import mg.dot.feufaro.solfa.Solfa
+
+class SolfaScreenModel (
+    private val solfa: Solfa
+) : ScreenModel{
+    init {}
+    fun loadNextInPlaylist() {
+        solfa.loadNextInPlaylist()
+    }
+}
\ No newline at end of file
diff --git a/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/main.kt b/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/main.kt
index 8ad306c..3a630a4 100644
--- a/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/main.kt
+++ b/composeApp/src/desktopMain/kotlin/mg/dot/feufaro/main.kt
@@ -25,8 +25,7 @@ fun main() = application {
         title = "Feufaro",
     ) {
         KoinContext {
-            val sharedViewModel: SharedViewModel = SharedViewModel()
-            App(sharedViewModel = sharedViewModel)
+            App()
         }
     }
 }
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 642a78b..9cbd080 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -21,8 +21,10 @@ core = "0.91.1"
 kmpObservableviewmodelCore = "1.0.0-BETA-3"
 kotlinxSerializationJson = "1.8.1"
 material3 = "1.3.2"
+voyager = "1.1.0-beta03"
 
 [libraries]
+cafe-voyager-koin = { module = "cafe.adriel.voyager:voyager-koin" }
 koin-compose-viewmodel = { module = "io.insert-koin:koin-compose-viewmodel", version.ref = "koin" }
 koin-compose-viewmodel-navigation = { module = "io.insert-koin:koin-compose-viewmodel-navigation", version.ref = "koin" }
 kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }
@@ -43,7 +45,6 @@ koin-compose = { module = "io.insert-koin:koin-compose", version.ref = "koin" }
 koin-core-viewmodel = { module = "io.insert-koin:koin-core-viewmodel", version.ref = "koin" }
 koin-android = { module = "io.insert-koin:koin-android", version.ref = "koin" }
 koin-androidx-compose = { module = "io.insert-koin:koin-androidx-compose", version.ref = "koin" }
-
 core = { module = "io.github.pdvrieze.xmlutil:core", version.ref = "core" }
 #core-android = { module = "io.github.pdvrieze.xmlutil:core-android", version.ref = "core" }
 #core-jdk = { module = "io.github.pdvrieze.xmlutil:core-jdk", version.ref = "core" }
@@ -51,6 +52,9 @@ serialization = { module = "io.github.pdvrieze.xmlutil:serialization", version.r
 kmp-observableviewmodel-core = { module = "com.rickclephas.kmp:kmp-observableviewmodel-core", version.ref = "kmpObservableviewmodelCore" }
 kotlinx-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "kotlinxSerializationJson" }
 androidx-material3 = { module = "androidx.compose.material3:material3", version.ref = "material3" }
+voyager-navigator = { module = "cafe.adriel.voyager:voyager-navigator", version.ref = "voyager" }
+voyager-screenmodel = { module = "cafe.adriel.voyager:voyager-screenmodel", version.ref = "voyager" }
+voyager-koin = { module = "cafe.adriel.voyager:voyager-koin", version.ref = "voyager" }
 
 [plugins]
 androidApplication = { id = "com.android.application", version.ref = "agp" }
@@ -60,3 +64,6 @@ composeMultiplatform = { id = "org.jetbrains.compose", version.ref = "composeMul
 composeCompiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
 kotlinMultiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
 kotlinSerialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin"}
+
+[bundles]
+voyager = ["voyager-navigator", "voyager-screenmodel", "voyager-koin"]
\ No newline at end of file