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 1dc2531..4e979c5 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
@@ -6,7 +6,9 @@ import androidx.compose.animation.core.tween
 import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.LocalIndication
 import androidx.compose.foundation.background
+import androidx.compose.foundation.border
 import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.focusable
 import androidx.compose.foundation.gestures.detectTapGestures
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.interaction.collectIsHoveredAsState
@@ -16,11 +18,9 @@ import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.Undo
-import androidx.compose.material.icons.filled.ArrowBackIosNew
 import androidx.compose.material.icons.filled.Build
 import androidx.compose.material.icons.filled.Close
 import androidx.compose.material.icons.filled.Description
-import androidx.compose.material.icons.filled.KeyboardDoubleArrowLeft
 import androidx.compose.material.icons.filled.Save
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
@@ -28,6 +28,8 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.drawBehind
 import androidx.compose.ui.draw.drawWithContent
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.Color
@@ -36,6 +38,7 @@ import androidx.compose.ui.graphics.drawscope.Stroke
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.layout.onSizeChanged
 import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.text.*
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontStyle
@@ -265,7 +268,9 @@ fun TimeUnitComposable(
     tuo: TimeUnitObject,
     stanzaNumber: Int,
     gridColumnCount: Int,
-    gridActive: Boolean
+    gridActive: Boolean,
+    isCurrentBlock: Boolean = false,
+    parentFocusRequester: FocusRequester? = null
 ) {
     val col = if (tuo.getNum() % 2 == 0) Color(0xff, 0xfa, 0xf7) else  Color(0xfb, 0xf3, 0xff)
     val currentDensity = LocalDensity.current
@@ -274,6 +279,8 @@ fun TimeUnitComposable(
         targetValue = if (gridActive) Color.Cyan.copy(alpha = 0.5f) else col,
         animationSpec = tween(durationMillis = 100) // Très court pour rester réactif
     )
+    val focusRequesters = remember { List(4) { FocusRequester() } }
+
     Column(
         modifier = Modifier
             .background(animatedColor)
@@ -569,6 +576,9 @@ fun LazyVerticalGridTUO(
     var selectedIndex by remember { mutableStateOf(-1) }
     val regexMeasure = Regex("(\\d)/\\d").find(viewModel.measure)
 
+    val focusRequester = remember { FocusRequester() }
+    var selectedGridIndex by remember { mutableStateOf(0) }
+
     LaunchedEffect(tuoList) {
         showContextualMenu = false
         showEditDialog = false
@@ -580,13 +590,21 @@ fun LazyVerticalGridTUO(
 
     val editMode by sharedScreenModel.modeEditor.collectAsState()
 
+    val focusManager = LocalFocusManager.current
     Column(
         modifier = Modifier
             .fillMaxWidth()
             .onSizeChanged { size ->
                 onGridWidthMeasured(size.width)
             }
+            .focusRequester(focusRequester)
+            .focusable()
     ) {
+        LaunchedEffect(editMode) {
+            if (editMode) {
+                focusRequester.requestFocus()
+            }
+        }
         val density = LocalDensity.current
         val horizontalArrangementSpacing: Dp = 0.dp
         val columnGroupString = regexMeasure?.groupValues?.get(1) ?: "1"
@@ -765,6 +783,7 @@ fun LazyVerticalGridTUO(
                         measureTUOs.forEachIndexed { indexInMeasure, oneTUO ->
                             val globalIndex = (measureIndex * gridColumnCount) + indexInMeasure
                             val isActive = (globalIndex == activeRowIndex)
+                            val isSelectedByKeyboard = (globalIndex == selectedGridIndex)
 
                             val myTimestamp = sharedScreenModel.tuoTimestamps.value.getOrElse(globalIndex) { 0L }
                             var menuOffset by remember { mutableStateOf(Offset.Zero) }
@@ -774,6 +793,11 @@ fun LazyVerticalGridTUO(
                             key(oneTUO.numBlock) {
                                 Box(modifier = Modifier
                                     .width(gridWidthDp / gridColumnCount)
+                                    .border(
+                                        width = if (isSelectedByKeyboard && editMode) 2.dp else 0.dp,
+                                        color = if (isSelectedByKeyboard && editMode) Color(0xFF9C27B0) else Color.Transparent,
+                                        shape = RoundedCornerShape(4.dp)
+                                    )
                                     .background(
                                         if (isHovered) Color.Black.copy(alpha = 0.05f) else Color.Transparent,
                                         RoundedCornerShape(4.dp)
@@ -787,6 +811,7 @@ fun LazyVerticalGridTUO(
                                         detectTapGestures(
                                             onTap = { offset ->
                                                 if(editMode) {
+                                                    selectedGridIndex = globalIndex
                                                     menuOffset = offset
                                                     selectedTUO = oneTUO
                                                     selectedIndex = globalIndex
@@ -802,7 +827,9 @@ fun LazyVerticalGridTUO(
                                         tuo = oneTUO,
                                         stanzaNumber = currentStanza,
                                         gridColumnCount = gridColumnCount,
-                                        gridActive = isActive
+                                        gridActive = isActive,
+                                        isCurrentBlock = isSelectedByKeyboard && editMode,
+                                        parentFocusRequester = focusRequester
                                     )
 
                                     if (showContextualMenu && selectedIndex == globalIndex) {
@@ -877,7 +904,8 @@ fun LazyVerticalGridTUO(
                                                 oneTUO.pTemplate.markerToString().takeIf { it.isNotBlank() },
                                                 oneTUO.hasHairPin()?.toString()?.takeIf { it.isNotBlank() }
                                             ).joinToString(" "),
-                                            silentDuration = blankPrefix
+                                            silentDuration = blankPrefix,
+                                            sep = oneTUO.sep0
                                         )
                                         TUODetailDialog(
                                             editState = editState,
@@ -1422,4 +1450,21 @@ fun autoFixNote(rawNote: String, template: String): String {
 
 //    println("on a RES ${finalResult}")
     return finalResult
+}
+private fun transformMusicalInput(input: String): String {
+    return input.lowercase()
+        .replace(";", "• ,")
+        .replace(".", "•")
+        .replace("-", "―")
+        .replace("(?<=[a-z])[']".toRegex(), "¹")
+        .replace("(?<=[a-z])[,]".toRegex(), "₁")
+        .replace("¹¹", "²")
+        .replace("¹'", "²")
+        .replace("²¹", "³")
+        .replace("²'", "³")
+        .replace("₁,", "₂")
+        .replace("₁₁", "₂")
+        .replace("₂,", "₃")
+        .replace("₂₁", "₃")
+        .replace("'", "¹")
 }
\ No newline at end of file