Harmonia vs music21
| Harmonia | music21 | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Android, iOS, macOS, Web, Windows | Web, Windows, macOS, Linux |
| Free plan | Yes | Yes |
| Interactive exercises | Yes | — |
| Notation tools | advanced | — |
| Harmony tools | Yes | — |
| MIDI support | Yes | Yes |
| Supported platforms | web, windows, macos, ios, android | — |
| Progress tracking | Yes | — |
Both are listed in Best Music Theory Software. On Inferse, Harmonia scores higher on our published basis.