diff --git a/ac-m4l/AC-KnobMap.amxd.json b/ac-m4l/AC-KnobMap.amxd.json
index ca464fa02..2a78fb68e 100644
--- a/ac-m4l/AC-KnobMap.amxd.json
+++ b/ac-m4l/AC-KnobMap.amxd.json
@@ -166,7 +166,7 @@
             200.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:ready'},'*')"
+          "text": "script window.acSnReady&&window.acSnReady()"
         }
       },
       {
@@ -983,7 +983,7 @@
             230.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:range',low:$1,high:$2},'*')"
+          "text": "script window.acSnNote&&window.acSnNote($1)"
         }
       },
       {
@@ -1001,7 +1001,7 @@
             205.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:note',note:$1},'*')"
+          "text": "script window.acSnNote&&window.acSnNote($1)"
         }
       },
       {
@@ -1019,7 +1019,7 @@
             215.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:value',value:$1},'*')"
+          "text": "script window.acSnValue&&window.acSnValue($1)"
         }
       },
       {
@@ -1037,7 +1037,7 @@
             220.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:active',active:$1},'*')"
+          "text": "script window.acSnActive&&window.acSnActive($1)"
         }
       },
       {
@@ -1073,7 +1073,7 @@
             255.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:target',name:'$1'},'*')"
+          "text": "script window.acSnTarget&&window.acSnTarget('$1')"
         }
       },
       {
@@ -1205,7 +1205,7 @@
             215.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:min',min:$1},'*')"
+          "text": "script window.acSnMin&&window.acSnMin($1)"
         }
       },
       {
@@ -1223,7 +1223,7 @@
             215.0,
             22.0
           ],
-          "text": "script window.postMessage({type:'spreadnob:max',max:$1},'*')"
+          "text": "script window.acSnMax&&window.acSnMax($1)"
         }
       },
       {
diff --git a/system/netlify/functions/index.mjs b/system/netlify/functions/index.mjs
index be17c6334..4ed74ec3a 100644
--- a/system/netlify/functions/index.mjs
+++ b/system/netlify/functions/index.mjs
@@ -936,13 +936,14 @@ async function fun(event, context) {
               console.log("🎹 Max for Live detected - DAW sync connected");
             };
             
-            // 🎛️ Spreadnob bridge — catches postMessage from M4L script commands
-            window.addEventListener("message", function(event) {
-              var d = event.data;
-              if (d && d.type && typeof d.type === "string" && d.type.indexOf("spreadnob:") === 0) {
-                send({ type: d.type, content: d });
-              }
-            });
+            // 🎛️ Spreadnob bridge — called directly by M4L script commands
+            window.acSnNote = function(n) { send({ type: "spreadnob:note", content: { note: n } }); };
+            window.acSnTarget = function(name) { send({ type: "spreadnob:target", content: { name: name } }); };
+            window.acSnValue = function(v) { send({ type: "spreadnob:value", content: { value: v } }); };
+            window.acSnActive = function(v) { send({ type: "spreadnob:active", content: { active: v } }); };
+            window.acSnMin = function(v) { send({ type: "spreadnob:min", content: { min: v } }); };
+            window.acSnMax = function(v) { send({ type: "spreadnob:max", content: { max: v } }); };
+            window.acSnReady = function() { send({ type: "spreadnob:ready", content: {} }); };
 
             // Signal to M4L that we're ready
             if (window.max) {
diff --git a/system/public/aesthetic.computer/bios.mjs b/system/public/aesthetic.computer/bios.mjs
index 873cf4e12..7639d9d8a 100644
--- a/system/public/aesthetic.computer/bios.mjs
+++ b/system/public/aesthetic.computer/bios.mjs
@@ -103,18 +103,20 @@ let _dawSampleRate = null; // 🎹 Store DAW sample rate for AudioContext creati
 let frozenUrlPath = null;
 
 // Called from boot() to connect the send function
+// NOTE: sendFunc is captured by VALUE at call time, but `send` may be reassigned
+// later (e.g. noWorker fallback). Use window.acSEND as the live reference.
 function _dawConnectSend(sendFunc, updateMetronome) {
   if (window.acDawConnect) {
-    // Wrap sendFunc to also update metronome and capture sample rate
     const wrappedSend = (msg) => {
       if (msg.type === "daw:tempo" && updateMetronome) {
         updateMetronome(msg.content.bpm);
       }
-      // 🎹 Capture DAW sample rate for AudioContext creation
       if (msg.type === "daw:samplerate" && msg.content?.samplerate) {
         _dawSampleRate = msg.content.samplerate;
       }
-      sendFunc(msg);
+      // Use window.acSEND (always current) with sendFunc as fallback
+      const currentSend = window.acSEND || sendFunc;
+      currentSend(msg);
     };
     window.acDawConnect(wrappedSend);
   }
diff --git a/system/public/aesthetic.computer/disks/spreadnob.mjs b/system/public/aesthetic.computer/disks/spreadnob.mjs
index 7ab1e0ac6..661c65afc 100644
--- a/system/public/aesthetic.computer/disks/spreadnob.mjs
+++ b/system/public/aesthetic.computer/disks/spreadnob.mjs
@@ -68,42 +68,49 @@ function arcXY(cx, cy, r, deg) {
   return [cx + r * Math.cos(rad), cy - r * Math.sin(rad)];
 }
 
-function boot() {}
+let simCount = 0;
+let dawExists = false;
+let dawKeys = "";
+
+function boot({ needsPaint }) { needsPaint(); }
 
 function sim({ sound, needsPaint }) {
+  simCount++;
   let dirty = false;
-  const sn = sound?.spreadnob;
-  if (sn) {
-    if (sn.active !== null && sn.active !== undefined) {
-      active = !!Number(sn.active);
-      sn.active = null;
+  // Read spreadnob data from sound.daw (stored as sn* props on persistentDawState)
+  const daw = sound?.daw;
+  dawExists = !!daw;
+  if (daw) {
+    if (daw.snActive !== undefined && daw.snActive !== null) {
+      active = !!Number(daw.snActive);
+      daw.snActive = null;
       dirty = true;
     }
-    if (sn.target !== null && sn.target !== undefined) {
-      target = String(sn.target).trim();
-      sn.target = null;
+    if (daw.snTarget !== undefined && daw.snTarget !== null) {
+      target = String(daw.snTarget).trim();
+      daw.snTarget = null;
       dirty = true;
     }
-    if (sn.min !== null && sn.min !== undefined) {
-      const n = Number(sn.min);
+    if (daw.snMin !== undefined && daw.snMin !== null) {
+      const n = Number(daw.snMin);
       if (Number.isFinite(n)) paramMin = n;
-      sn.min = null;
+      daw.snMin = null;
       dirty = true;
     }
-    if (sn.max !== null && sn.max !== undefined) {
-      const n = Number(sn.max);
+    if (daw.snMax !== undefined && daw.snMax !== null) {
+      const n = Number(daw.snMax);
       if (Number.isFinite(n)) paramMax = n;
-      sn.max = null;
+      daw.snMax = null;
       dirty = true;
     }
-    if (sn.value !== null && sn.value !== undefined) {
-      const n = Number(sn.value);
+    if (daw.snValue !== undefined && daw.snValue !== null) {
+      const n = Number(daw.snValue);
       value = Number.isFinite(n) ? n : null;
-      sn.value = null;
+      daw.snValue = null;
       dirty = true;
     }
-    if (sn.note !== null && sn.note !== undefined) {
-      const n = Number(sn.note);
+    if (daw.snNote !== undefined && daw.snNote !== null) {
+      const n = Number(daw.snNote);
       if (n !== lastSnNote) {
         currentNote = Number.isFinite(n) ? n : null;
         lastSnNote = n;
@@ -116,6 +123,9 @@ function sim({ sound, needsPaint }) {
         dirty = true;
       }
     }
+    if (simCount % 60 === 0) {
+      dawKeys = Object.keys(daw).filter(k => k.startsWith("sn") && daw[k] !== null).join(",");
+    }
   }
 
   if (flash > 0) {
@@ -123,7 +133,7 @@ function sim({ sound, needsPaint }) {
     if (flash < 0.025) flash = 0;
     dirty = true;
   }
-  if (dirty) needsPaint();
+  needsPaint(); // Always repaint for debug
 }
 
 function paint({ wipe, ink, screen }) {
@@ -221,6 +231,9 @@ function paint({ wipe, ink, screen }) {
 
   // Title
   ink(200, 120, 170).write("spreadnob", { x: 6, y: 4 }, undefined, undefined, false, MINI_FONT);
+
+  // Debug info
+  ink(255, 255, 0).write(`sim:${simCount} daw:${dawExists} keys:${dawKeys || "none"}`, { x: 6, y: h - 8 }, undefined, undefined, false, MINI_FONT);
 }
 
 function act({ event, screen, needsPaint }) {
diff --git a/system/public/aesthetic.computer/lib/disk.mjs b/system/public/aesthetic.computer/lib/disk.mjs
index dc452b9ae..0546a5f11 100644
--- a/system/public/aesthetic.computer/lib/disk.mjs
+++ b/system/public/aesthetic.computer/lib/disk.mjs
@@ -9798,8 +9798,8 @@ let pendingExportEvents = [];
 
 async function makeFrame({ data: { type, content } }) {
   // DEBUG: Log ALL messages starting with "pedal:" or "daw:"
-  if (type?.startsWith?.("pedal:") || type?.startsWith?.("daw:")) {
-    console.log("🎹🎹🎹 makeFrame received:", type, content);
+  if (type?.startsWith?.("pedal:") || type?.startsWith?.("daw:") || type?.startsWith?.("spreadnob:")) {
+    console.log("🎹🎹🎹 makeFrame received:", type, JSON.stringify(content));
   }
   
   // Handle permission responses from bios.mjs