diff --git a/node-server/assets/script.js b/node-server/assets/script.js
index f9b0530..d33289d 100644
--- a/node-server/assets/script.js
+++ b/node-server/assets/script.js
@@ -12,21 +12,12 @@ const loopBtn = document.getElementById('loop');
 let isPlaying = false;
 let isLooping = false;
 let idleTimeout = null;
-let reverseInterval = null;
-let reverseAudioLoaded = false;
-
-// 3. Variables pour vitesse
 let lastPosition = null;
 let lastTime = null;
 
-// 4. Connexion socket
+// 3. Connexion Socket.io
 const socket = io();
 
-// 5. Sauvegarder les sources
-const originalSrc = audio.getAttribute('src');
-const reverseSrc = audio.dataset.reverseSrc || null;
-
-// 6. SOCKET – gestion de la position envoyée
 socket.on('position', (position) => {
   const now = Date.now();
 
@@ -37,20 +28,15 @@ socket.on('position', (position) => {
 
     clearTimeout(idleTimeout);
 
-    if (Math.abs(speed) < 15) {
+    if (Math.abs(speed) < 10) {
       stopPlayback();
       return;
     }
 
-    const isReverse = speed < 0;
-
-    if (isReverse) {
-      simulateReverse(Math.abs(speed));
+    if (speed > 0) {
+      controlForwardPlayback(speed);
     } else {
-      stopReverse();
-      let playbackSpeed = 1 + speed * 0.0003;
-      playbackSpeed = Math.max(0.5, Math.min(1.5, playbackSpeed));
-      controlPlayback(playbackSpeed);
+      controlRewind(Math.abs(speed));
     }
   }
 
@@ -62,7 +48,47 @@ socket.on('position', (position) => {
   }, 300);
 });
 
-// 7. Fonctions
+// 4. Fonctions principales
+
+function controlForwardPlayback(speed) {
+  const rate = 1 + speed * 0.0003;
+  const playbackSpeed = Math.min(2, Math.max(0.5, rate));
+
+  vinyl.classList.remove('reverse');
+  vinyl.style.animationPlayState = 'running';
+
+  if (!isPlaying) {
+    audio.play();
+    isPlaying = true;
+  }
+
+  audio.playbackRate = playbackSpeed;
+}
+
+function controlRewind(speed) {
+  if (isPlaying) {
+    audio.pause();
+    isPlaying = false;
+  }
+
+  const rewindAmount = speed * 0.01;
+  audio.currentTime = Math.max(0, audio.currentTime - rewindAmount);
+
+  vinyl.classList.add('reverse');
+  vinyl.style.animationPlayState = 'running';
+}
+
+function stopPlayback() {
+  if (isPlaying) {
+    audio.pause();
+    isPlaying = false;
+  }
+
+  vinyl.classList.remove('reverse');
+  vinyl.style.animationPlayState = 'paused';
+}
+
+// 5. Fonctions interface
 
 function togglePlay() {
   if (isPlaying) {
@@ -94,74 +120,7 @@ function setProgress(e) {
   audio.currentTime = (clickX / width) * duration;
 }
 
-function controlPlayback(speed) {
-  stopReverse();
-  if (speed > 0) {
-    if (!isPlaying) {
-      audio.play();
-      vinyl.style.animationPlayState = 'running';
-      isPlaying = true;
-    }
-    audio.playbackRate = speed;
-  }
-}
-
-function stopPlayback() {
-  audio.pause();
-  vinyl.style.animationPlayState = 'paused';
-  isPlaying = false;
-}
-
-// Simule la lecture en reverse via décrémentation du currentTime
-function simulateReverse(speed) {
-  const reverseSpeed = Math.min(speed * 0.01, 2);
-
-  if (!reverseSrc) return;
-
-  if (!reverseInterval) {
-    reverseInterval = setInterval(() => {
-      if (audio.currentTime > 0.05) {
-        audio.currentTime -= reverseSpeed * 0.1;
-        vinyl.style.animationPlayState = 'running';
-      } else {
-        stopPlayback();
-      }
-    }, 100);
-
-    if (!reverseAudioLoaded) {
-      const currentTime = audio.currentTime;
-      audio.src = reverseSrc;
-      audio.load();
-      audio.addEventListener('loadedmetadata', () => {
-        const newTime = Math.min(currentTime, audio.duration - 0.1);
-        audio.currentTime = newTime;
-      }, { once: true });
-      reverseAudioLoaded = true;
-    }
-
-    isPlaying = true;
-    audio.pause();
-  }
-}
-
-function stopReverse() {
-  if (reverseInterval) {
-    clearInterval(reverseInterval);
-    reverseInterval = null;
-  }
-
-  if (reverseAudioLoaded) {
-    const currentTime = audio.currentTime;
-    audio.src = originalSrc;
-    audio.load();
-    audio.addEventListener('loadedmetadata', () => {
-      audio.currentTime = Math.min(currentTime, audio.duration - 0.1);
-    }, { once: true });
-    reverseAudioLoaded = false;
-  }
-}
-
-// 8. Événements utilisateur
+// 6. Événements manuels
 
 vinyl.addEventListener('click', togglePlay);
 audio.addEventListener('timeupdate', updateProgress);
diff --git a/node-server/assets/stylesmf.css b/node-server/assets/stylesmf.css
index 805d9c7..f9c85be 100644
--- a/node-server/assets/stylesmf.css
+++ b/node-server/assets/stylesmf.css
@@ -78,7 +78,8 @@ body {
     height: 600px;
     border-radius: 50%;
     background: radial-gradient(circle at center, #444 0%, #111 60%, #000 100%);
-    animation: spin 5s linear infinite paused;
+    animation: spin 4s linear infinite;
+    animation-play-state: paused;
     display: flex;
     align-items: center;
     justify-content: center;
@@ -86,6 +87,11 @@ body {
     cursor: pointer;
     margin: 20px 0;
   }
+
+
+  .vinyl.reverse {
+  animation: spin-reverse 4s linear infinite;
+}
   
   .vinyl img {
     width: 40%;
@@ -166,12 +172,13 @@ body {
   
   
   @keyframes spin {
-    from {
-      transform: rotate(0deg);
-    }
-    to {
-      transform: rotate(360deg);
-    }
+    from { transform: rotate(0deg); }
+    to   { transform: rotate(360deg); }
+  }
+
+  @keyframes spin-reverse {
+    from { transform: rotate(0deg); }
+    to   { transform: rotate(-360deg); }
   }
   
   @media (max-width: 768px) {