Audio Section Annotation
One waveform. Multi-instructor sets. Local-only storage (per browser).
Local-only demo • No server storage
Waveform & Markers
Click to drop markers, label sections, move them, zoom horizontally, and
score.
No song loaded
−
• Click in the waveform to drop a marker. Type a label and press
Enter to lock it in.
• Drag the Move pill under a label to slide the marker left/right.
• Press Space (outside text boxes) to play/pause from the last cursor/marker.
• Drag the Move pill under a label to slide the marker left/right.
• Press Space (outside text boxes) to play/pause from the last cursor/marker.
Click here or in the waveform to add section markers
Teacher • Setlist & Answer Keys
Store up to 8 songs per Set ID. Answer keys live in your browser’s local
storage.
1) Enter a Set ID above and click “Load / Create Set”.
2) For each slot, paste a remote audio URL and click Save Slot.
3) Load a song into the editor, mark sections, then click Export Answer Key.
2) For each slot, paste a remote audio URL and click Save Slot.
3) Load a song into the editor, mark sections, then click Export Answer Key.
Student • Pick Song from Set
Choose your instructor’s Set ID, then load any of the up to 8 songs in that
set.
This uses only the setlists and answer keys saved in this browser.
It does not talk to a server or share data across devices.
It does not talk to a server or share data across devices.