diff --git a/viz/index.html b/viz/index.html
index 13770d9..c5e3992 100644
--- a/viz/index.html
+++ b/viz/index.html
@@ -378,6 +378,10 @@
   #godspeakrec.on { display: flex; animation: gspk-pulse 1.1s ease-in-out infinite; }
   @keyframes gspk-pulse { 0%, 100% { opacity: 0.55; } 50% { opacity: 1; } }
 
+  /* 📼 TESTAMENT — the record button; red + gently pulsing while it bears witness */
+  #testament.on { color: #ff8a8a !important; border-color: rgba(240,110,110,0.6) !important;
+    background: rgba(230,90,90,0.2) !important; animation: gspk-pulse 1.5s ease-in-out infinite; font-variant-numeric: tabular-nums; }
+
   /* right-click context menu — every setting, on everything */
   #ctxmenu {
     position: fixed; z-index: 30; display: none; width: 240px; max-height: 72vh;
@@ -7797,6 +7801,8 @@
           eventTicker.unshift({ text: ok ? "🎛 GODSONIQ — sampling the world for 3s… then every pluck replays it, pitched across the keys (🎸 string voice to exit)"
             : "🎛 GODSONIQ needs the audio worklet — press ♪ first, then try again", tAdded: now(), src: "sys" }); });
       ctxItem("🌾 AMPLER — there is ample (sample the world into the kit)", () => openAmpler());
+      ctxItem((Synth.testamentState && Synth.testamentState().on) ? "📼 TESTAMENT — stop & save the take" : "📼 TESTAMENT — record what god does",
+        () => { if (Synth.testament) Synth.testament(); });
       ctxItem("⚡ GODSPEED — hold a chord, the machine runs", () => openGodspeed());
       ctxItem("🌐 " + (Synth.feeding() ? "tab feed: live — click to stop" : "feed a tab (YouTube, a stream…) into the world"),
         async () => { const r = await Synth.feedTab();
@@ -9202,7 +9208,7 @@
         g.connect(pan); pan.connect(drumBus); drums[dv] = { g, pan };
       }
 
-      return { out, squash, squashMakeup, preSat, glitch, revSend, fb, satDry, satWet, leadA, leadB, morphA, morphB, leadFilt, leadAmp,
+      return { out, squash, squashMakeup, lim, preSat, glitch, revSend, fb, satDry, satWet, leadA, leadB, morphA, morphB, leadFilt, leadAmp,
                bassOsc, bassAmp, padOscs, padFilt, padAmp, droneOscs, droneAmp,
                echoDelay, echoFilt, echoFb, echoWet, echoFlutAmt, hissGain, chorusWet,
                drumBus, drums, noiseBuf, duckG };
@@ -9626,7 +9632,69 @@
       }
     });
 
+    // ---- 📼 TESTAMENT — record what god does ("it is written") --------------
+    // A MediaRecorder tapped off N.lim: the TRUE final mix, post-squash and
+    // post-limiter — exactly what you hear. Lazy (destination + recorder built
+    // on first roll), timesliced so a crash loses ≤1s. The GODSONIQ worklet
+    // Recorder is a different machine for a different purpose — untouched.
+    let testDest = null, testRec = null, testChunks = [], testT0 = 0, testUiTimer = null;
+    function testamentStart() {
+      if (!ctx) start();                                 // wake the graph — a recording can begin the session
+      if (testRec) return false;                         // already rolling
+      if (!testDest) { testDest = ctx.createMediaStreamDestination(); N.lim.connect(testDest); }
+      const mime = ["audio/webm;codecs=opus", "audio/webm", "audio/mp4"]
+        .find(m => window.MediaRecorder && MediaRecorder.isTypeSupported(m));
+      if (!mime) return false;                           // no MediaRecorder / no supported container (old Safari)
+      testChunks = []; testRec = new MediaRecorder(testDest.stream, { mimeType: mime, audioBitsPerSecond: 256000 });
+      testRec.ondataavailable = (e) => { if (e.data && e.data.size) testChunks.push(e.data); };
+      testRec.start(1000);                               // 1s timeslices
+      testT0 = ctx.currentTime; return true;
+    }
+    function testamentStop() {
+      return new Promise((resolve) => {
+        if (!testRec) { resolve(null); return; }
+        const rec = testRec, secs = ctx.currentTime - testT0;
+        const ext = rec.mimeType.indexOf("mp4") >= 0 ? "m4a" : "webm";
+        rec.onstop = () => { const blob = new Blob(testChunks, { type: rec.mimeType }); testChunks = []; resolve({ blob, secs, ext }); };
+        testRec = null; rec.stop();
+      });
+    }
+    function testamentState() { return { on: !!testRec, secs: testRec ? ctx.currentTime - testT0 : 0 }; }
+
+    const testBtn = document.createElement("div");
+    testBtn.id = "testament"; testBtn.textContent = "⏺"; testBtn.title = "TESTAMENT — record the master mix to a file";
+    Object.assign(testBtn.style, { position: "fixed", top: "12px", right: "132px", zIndex: 10,
+      height: "30px", minWidth: "30px", padding: "0 7px", borderRadius: "8px", display: "flex",
+      alignItems: "center", justifyContent: "center", background: "rgba(20,28,44,0.7)", color: "#cba6a6",
+      cursor: "pointer", fontSize: "13px", border: "1px solid rgba(120,150,200,0.25)",
+      backdropFilter: "blur(6px)", WebkitBackdropFilter: "blur(6px)" });
+    if (!AC || !window.MediaRecorder) { testBtn.style.opacity = "0.3"; testBtn.title = "this browser cannot record"; }
+    document.body.appendChild(testBtn);
+    const testFmt = (s) => { s = Math.max(0, Math.floor(s)); return Math.floor(s / 60) + ":" + String(s % 60).padStart(2, "0"); };
+    function testPaint() { const st = testamentState(); testBtn.classList.toggle("on", st.on); testBtn.textContent = st.on ? "⏺ " + testFmt(st.secs) : "⏺"; }
+    function testamentToggle() {
+      if (testamentState().on) {
+        testamentStop().then((r) => {
+          if (testUiTimer) { clearInterval(testUiTimer); testUiTimer = null; }
+          testPaint();
+          if (!r || !r.blob || !r.blob.size) return;
+          const d = new Date(), pad = (n) => String(n).padStart(2, "0");
+          const stamp = "" + d.getFullYear() + pad(d.getMonth() + 1) + pad(d.getDate()) + "-" + pad(d.getHours()) + pad(d.getMinutes());
+          const a = document.createElement("a"); a.href = URL.createObjectURL(r.blob);
+          a.download = "godstrument-testament-" + stamp + "." + r.ext;
+          document.body.appendChild(a); a.click(); document.body.removeChild(a);
+          setTimeout(() => URL.revokeObjectURL(a.href), 4000);
+          eventTicker.unshift({ text: "📼 testament: " + testFmt(r.secs) + " — it is written", tAdded: now(), src: "sys" });
+        });
+      } else {
+        if (!testamentStart()) { eventTicker.unshift({ text: "📼 this browser cannot bear witness", tAdded: now(), src: "sys" }); return; }
+        testPaint(); testUiTimer = setInterval(testPaint, 1000);
+      }
+    }
+    testBtn.addEventListener("click", testamentToggle);
+
     return { update(dests) { if (dests) Object.assign(D, dests); }, pluck,
+      testamentStart, testamentStop, testamentState, testament: testamentToggle,
       toggle() { on ? stop() : start(); paint(); return on; }, playing() { return on; },
       stringVoice(v) { if (v === undefined) return ksMode; if (!ctx) start(); ksMode = !!v; sampleMode = false; return ksMode; },
       godsoniq(secs) { return godsoniq(secs); }, sampling() { return sampleMode && !!sampleBuf; },