diff --git a/app/static/js/services/soundfontPlayer.js b/app/static/js/services/soundfontPlayer.js
index bb0a556..e85c936 100644
--- a/app/static/js/services/soundfontPlayer.js
+++ b/app/static/js/services/soundfontPlayer.js
@@ -130,6 +130,7 @@
                     if (_useScriptNode) {
                         var spBufSz = 2048;
                         var spn = _audioCtx.createScriptProcessor(spBufSz, 0, 2);
+                        getCtx();
                         var lp = _fluidModule._malloc(spBufSz * 4);
                         var rp = _fluidModule._malloc(spBufSz * 4);
                         spn.onaudioprocess = function (e) {
@@ -151,6 +152,11 @@
                         console.log("[SonicSF] ScriptProcessorNode fallback active (buf:", spBufSz, ")");
                     }
 
+                    // Re-route through mixer graph if it exists (created before SonicSF was ready)
+                    if (window.__mixerGraphManager && typeof SonicSF.setOutputNode === 'function') {
+                        SonicSF.setOutputNode(window.__mixerGraphManager.masterGain);
+                    }
+
                     _initialized = true;
                     console.log("[SonicSF] FluidSynth WASM Engine initialized.");
                 } catch (e) {