- Pitch-bend no longer snaps back on a 150ms idle timeout. The gesture rides .mouseMoved events, which carry no trackpad touch state, so a finger resting still on the trackpad emitted no deltas and the timer fired mid-hold. Spring-back is now driven solely by keyboard note release (onLitChanged -> startBendDecay), which was always the intended design. Removed the dead bendIdleTimer property and its cancelBendDecay cleanup. - MenuBandSampleVoice/Synth/Controller: sample-voice playback so pressing a key plays the piano instead of falling back to a tone. - New cassette/tape feature: MenuBandTape recorder + TapeTransportView popover deck + TapeCoverArt Finder icon + TapeDragSource eject. - KeyboardIconRenderer + AboutWindow + popover supporting tweaks. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>