music21 vs Open Music Theory
| music21 | Open Music Theory | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web, Windows, macOS, Linux | Web |
| Free plan | Yes | Yes |
| MIDI support | Yes | — |
| Interactive exercises | — | Yes |
| Notation tools | — | basic |
| Harmony tools | — | Yes |
| Supported platforms | — | web |
Both are listed in Best Music Theory Software. On Everything Xiaomi, music21 scores higher on our published basis.