Hear it.
Play it.
Drop in an MP3 and get a timed chord map with the exact piano keys to press—simple enough to play even if you are just starting.
Drop your MP3 here
or choose a file from your device
MP3 · up to 75 MB · 20 minutes maxYour music stays yours.
Chords and optional Whisper lyric timing run in your browser. No audio is sent to OpenAI or a transcription API. The first Whisper run downloads a model to your browser cache.
Finding the harmony…
Preparing your track
Your song
0:00 · — BPM · Key —
Review the words
Paste lyrics or import an .lrc file. Sync lyrics can prepare local Whisper timing; review it and use Manual sync in Lyrics Lab when a sung phrase needs correction.
—
Ready when you are
Keys to play—
Follow the song
Chords light up as the song plays
Lyrics & chords
Song map
The library.
Published songs from FYNMONSTA, ready to hear and play.
From sound
to structure.
- 01
Listen
Your browser reads the harmony and energy in short slices of the song.
- 02
Match
Each slice is compared against musical chord shapes and smoothed for natural changes.
- 03
Play
The timeline follows the audio while a live keyboard shows beginners exactly which notes to press.