diff --git a/assets/js/creations/pattern/pattern_audio.js b/assets/js/creations/pattern/pattern_audio.js
index 03515757..46670274 100755
--- a/assets/js/creations/pattern/pattern_audio.js
+++ b/assets/js/creations/pattern/pattern_audio.js
@@ -591,11 +591,23 @@ export function startSongPatternPlaybackOnTransport() {
         if (patt.steps[hit.localStep]) {
           // SAMPLER
           if (track.type === "sampler" && track.player) {
-            track.player.restart = true; // baterias precisam retrigger
+            // Tone.Player é monofônico por padrão; sem retrigger, hits rápidos "morrem".
+            if ("retrigger" in track.player) track.player.retrigger = true;
+
             try {
-              track.player.start(time);
-            } catch {}
+              // preferível: restart() (método) retrigga sem depender do estado atual
+              if (typeof track.player.restart === "function") {
+                track.player.restart(time);
+              } else {
+                track.player.start(time);
+              }
+            } catch (e) {
+              // fallback (p/ versões diferentes do Tone)
+              try { track.player.stop(time); } catch {}
+              try { track.player.start(time); } catch {}
+            }
           }
+
           // PLUGIN (step sem piano roll)
           else if (track.type === "plugin" && track.instrument) {
             const hasNotes = patt.notes && patt.notes.length > 0;
diff --git a/assets/js/creations/pattern/pattern_state.js b/assets/js/creations/pattern/pattern_state.js
index 8df0c194..2f134369 100755
--- a/assets/js/creations/pattern/pattern_state.js
+++ b/assets/js/creations/pattern/pattern_state.js
@@ -147,7 +147,10 @@ export async function loadAudioForTrack(track) {
         track.instrument = null;
     }
 
-    const player = new Tone.Player({ url: track.samplePath, autostart: false });
+    const player = new Tone.Player({ url: track.samplePath, autostart: false, retrigger: true });
+    // redundância segura p/ builds diferentes do Tone:
+    try { player.retrigger = true; } catch {}
+
     await player.load(track.samplePath); 
 
     player.connect(track.volumeNode);
diff --git a/assets/js/creations/socket.js b/assets/js/creations/socket.js
index 80323bbb..60609a5e 100755
--- a/assets/js/creations/socket.js
+++ b/assets/js/creations/socket.js
@@ -976,6 +976,19 @@ async function handleActionBroadcast(action) {
         track.activePatternIndex = patternIndex;
       });
 
+      try {
+        const maxSteps = appState.pattern.tracks
+          .filter(t => t.type !== "bassline")
+          .map(t => t.patterns?.[patternIndex]?.steps?.length || 0)
+          .reduce((a, b) => Math.max(a, b), 0);
+
+        const barsEl = document.getElementById("bars-input");
+        if (barsEl && maxSteps > 0) {
+          // assumindo 16 steps por compasso (4/4 em 1/16)
+          barsEl.value = Math.max(1, Math.ceil(maxSteps / 16));
+        }
+      } catch {}
+
       // Mostra o toast (só uma vez)
       if (!isFromSelf) {
         const who = actorOf(action);