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Drop a song to begin
MP3 · WAV · M4A · FLAC · OGG — analyzed locally, nothing uploaded
No file? Here's where songs legally come from. Streaming (Spotify/Apple Music) can't be used — it's DRM-protected. But you can: buy & download a track from Bandcamp; grab public-domain & live recordings from the Internet Archive (archive.org — many links load straight into the box on the left); download Creative-Commons music from the Free Music Archive, ccMixter or Jamendo; or just drop in your own recordings. Everything is analyzed on your device — nothing is uploaded. Try a demo plays a chord progression Musica renders itself.
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Detecting chords…
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drag the waveform to loop
slow it down — pitch stays put
transpose without changing speed