diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/midi/MidiSequence.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/midi/MidiSequence.kt
index fe8e8d7..1b65aee 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/midi/MidiSequence.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/midi/MidiSequence.kt
@@ -7,11 +7,6 @@ class MidiSequence(val resolution: Int = 60) {
     val out: MutableList<Byte> = mutableListOf<Byte>()
     private var lastTick = 0L
 
-    fun getDeltaAndSync(channel: Int, currentTick: Long): Long {
-        val delta = currentTick - lastTick
-        lastTick = currentTick
-        return delta
-    }
     fun createTrack(): MutableList<Byte> {
         val newTrack = mutableListOf<Byte>()
         tracks.add(newTrack)
@@ -45,7 +40,8 @@ class MidiSequence(val resolution: Int = 60) {
     }
     fun MutableList<Byte>.addNote(channel: Int, pitch: Int, currentTick: Long, type: Int = 80, finalVelocity: Int = 100) {
         // Calcul du Delta-Time
-        val delta = getDeltaAndSync(channel, currentTick)
+        val delta = currentTick - lastTick
+        lastTick = currentTick
 
         val status = if (type == 80) (0x80 or channel) else (0x90 or channel)
 
@@ -83,7 +79,7 @@ class MidiSequence(val resolution: Int = 60) {
         out.write16Bit(1)
 
         // 4. Nombre de pistes (16 bits)
-        out.write16Bit(trackCount) 
+        out.write16Bit(trackCount)
 
         // 5. Division / Résolution (16 bits)
         // Ticks par noire (votre variable 'resolution')