diff --git a/web_realart/public/control/control.css b/web_realart/public/control/control.css
index 401398c..a19e25a 100644
--- a/web_realart/public/control/control.css
+++ b/web_realart/public/control/control.css
@@ -62,3 +62,16 @@ button.sel { background: #246; border-color: #4af; color: #8cf; }
   border: 1px solid #333; border-radius: 4px; overflow: hidden; }
 .vu-bar { height: 100%; width: 0%; background: linear-gradient(to right, #2b6, #9d4, #fa0);
   border-radius: 4px; transition: width 0.08s linear; }
+
+/* --- Quantize selector --- */
+.quant-bar { display: flex; align-items: center; gap: 6px; margin: 8px 0; flex-wrap: wrap; }
+.quant-label { font-size: 13px; color: #888; flex-shrink: 0; }
+.quant-btn { width: auto; padding: 8px 14px; font-size: 14px; flex-shrink: 0; }
+.quant-btn.active { background: #246; color: #8cf; border-color: #4af; font-weight: 700; }
+
+/* --- Queued state blink --- */
+@keyframes queued-blink {
+  from { opacity: 1; }
+  to   { opacity: 0.35; }
+}
+button.queued { animation: queued-blink 600ms ease-in-out infinite alternate; }
diff --git a/web_realart/public/control/control.js b/web_realart/public/control/control.js
index cadd5ce..2f2094a 100644
--- a/web_realart/public/control/control.js
+++ b/web_realart/public/control/control.js
@@ -6,11 +6,16 @@ function send(address, ...args) {
   if (ws.readyState === 1) ws.send(JSON.stringify({ address, args }));
 }
 const armed = new Set();
+const clipState = new Map(); // name -> last-known state int: 0 off, 1 playing, 2 queued-launch, 3 queued-stop
 function togglePad(el, name) {
-  const on = !armed.has(name);
-  on ? armed.add(name) : armed.delete(name);
-  el.classList.toggle("armed", on);
-  send("/launch", name, on ? 1 : 0);
+  // Use last-known state for toggle direction; fall back to armed Set
+  const st = clipState.has(name) ? clipState.get(name) : (armed.has(name) ? 1 : 0);
+  // launch (1) when off or queued-stop; stop (0) when playing or queued-launch
+  const launch = (st === 0 || st === 3);
+  // optimistic feedback — authoritative update comes from /armed feedback
+  el.classList.add("queued");
+  if (launch) el.classList.add("armed");
+  send("/launch", name, launch ? 1 : 0);
 }
 
 // --- Feedback: engine -> browser ---
@@ -23,13 +28,16 @@ ws.addEventListener("message", (ev) => {
   if (!msg || typeof msg.address !== "string") return;
   const { address, args } = msg;
 
-  // /armed/<name> — engine is source of truth for arm state
+  // /armed/<name> — engine is source of truth; args[0] is a state int 0-3
+  // 0 = off, 1 = playing (solid), 2 = queued-launch (blink), 3 = queued-stop (blink)
   if (address.startsWith("/armed/")) {
     const name = address.slice(7); // strip "/armed/"
-    const isArmed = args[0] === 1;
-    if (isArmed) armed.add(name); else armed.delete(name);
+    const st = Number(args[0]);
+    clipState.set(name, st);
+    if (st >= 1) armed.add(name); else armed.delete(name);
     document.querySelectorAll(`[data-pad="${name}"]`).forEach((btn) => {
-      btn.classList.toggle("armed", isArmed);
+      btn.classList.toggle("armed", st >= 1);
+      btn.classList.toggle("queued", st === 2 || st === 3);
     });
     return;
   }
@@ -310,6 +318,14 @@ document.addEventListener("DOMContentLoaded", () => {
   const filt = document.getElementById("filter");
   filt && filt.addEventListener("input", () => send("/control/fx/filter", +filt.value));
 
+  // Quantize selector
+  document.querySelectorAll(".quant-btn").forEach(btn =>
+    btn.addEventListener("click", () => {
+      document.querySelectorAll(".quant-btn").forEach(b => b.classList.remove("active"));
+      btn.classList.add("active");
+      send("/launch/quant", +btn.dataset.quant);
+    }));
+
   // Clear
   document.getElementById("clear").addEventListener("click", () => {
     armed.clear();
diff --git a/web_realart/public/control/index.html b/web_realart/public/control/index.html
index 4ef1c34..acb60f9 100644
--- a/web_realart/public/control/index.html
+++ b/web_realart/public/control/index.html
@@ -36,6 +36,13 @@
   </div>
   <button id="clear" class="wide">Tout couper</button>
   <label>Tempo <input id="tempo" type="range" min="60" max="180" value="126"></label>
+  <div class="quant-bar">
+    <span class="quant-label">Quant</span>
+    <button class="quant-btn" data-quant="0.5">½</button>
+    <button class="quant-btn" data-quant="1">1</button>
+    <button class="quant-btn active" data-quant="4">1 mes</button>
+    <button class="quant-btn" data-quant="8">2 mes</button>
+  </div>
 </section>
 </div>