diff --git a/PLAN.md b/PLAN.md
index ddee9e7..38cfc9c 100644
--- a/PLAN.md
+++ b/PLAN.md
@@ -94,6 +94,12 @@
 - ✅ Synchronized playback across all tracks
 - ✅ Per-track gain and pan during playback
 - ✅ Solo/Mute handling during playback
+- ✅ Per-track effect chains with device rack
+- ✅ Collapsible effects section below each track
+- ✅ Effect browser with categorized effects
+- ✅ Horizontal scrolling device rack (Ableton-style)
+- ✅ Individual effect cards with expand/collapse
+- 🔲 Master channel effects (TODO: Implement master effect chain UI similar to per-track effects)
 
 ### Next Steps
 - **Phase 6**: Audio effects ✅ COMPLETE (Basic + Filters + Dynamics + Time-Based + Advanced + Chain Management)
diff --git a/components/editor/AudioEditor.tsx b/components/editor/AudioEditor.tsx
index 0fd3048..c7aca0b 100644
--- a/components/editor/AudioEditor.tsx
+++ b/components/editor/AudioEditor.tsx
@@ -328,37 +328,22 @@ export function AudioEditor() {
         </main>
       </div>
 
-      {/* Transport Controls + Master Channel */}
-      <div className="border-t border-border bg-card">
-        {/* Transport Controls */}
-        <div className="p-3 flex justify-center border-b border-border">
-          <PlaybackControls
-            isPlaying={isPlaying}
-            isPaused={!isPlaying}
-            currentTime={currentTime}
-            duration={duration}
-            volume={masterVolume}
-            onPlay={play}
-            onPause={pause}
-            onStop={stop}
-            onSeek={seek}
-            onVolumeChange={setMasterVolume}
-            currentTimeFormatted={formatDuration(currentTime)}
-            durationFormatted={formatDuration(duration)}
-          />
-        </div>
-
-        {/* Master Track Strip */}
-        <div className="p-3">
-          <div className="flex items-center gap-2 mb-2">
-            <h3 className="text-sm font-semibold text-foreground">Master</h3>
-            <span className="text-xs text-muted-foreground">Final mix output</span>
-          </div>
-          {/* Master effects will go here */}
-          <div className="text-xs text-muted-foreground">
-            Master effects: {masterEffectChain.effects.length}
-          </div>
-        </div>
+      {/* Transport Controls */}
+      <div className="border-t border-border bg-card p-3 flex justify-center">
+        <PlaybackControls
+          isPlaying={isPlaying}
+          isPaused={!isPlaying}
+          currentTime={currentTime}
+          duration={duration}
+          volume={masterVolume}
+          onPlay={play}
+          onPause={pause}
+          onStop={stop}
+          onSeek={seek}
+          onVolumeChange={setMasterVolume}
+          currentTimeFormatted={formatDuration(currentTime)}
+          durationFormatted={formatDuration(duration)}
+        />
       </div>
 
       {/* Import Track Dialog */}