music21 pricing
1 plan read from music21.org
music21Free BSD-licensed toolkit · corpus works may have separate restrictions Read 8 Oct 2026 · music21.org
In short
- music21 has a free plan (music21).
What the alternatives costAll alternatives →
| Tool | From | Free plan | Free trial |
|---|---|---|---|
| Harmonia | — | Yes | Yes |
| ChordIQ | — | Yes | Yes |
| Complete Rhythm Trainer | €0.83/mo | No | Yes |
| Complete Music Trainer | €0.83/mo | No | Yes |
| Clements Theory | £3.92/mo | No | Yes |
| note-noodle | €7/mo | Yes | Yes |
| Musition | $3.25/mo | No | Yes |
| ABRSM Music Theory Trainer | — | No | No |