Best music21 Alternatives in 2026

20 platforms from music notation software ranked against music21 on the same published basis.

  1. 1music21 vs Noteflight
  2. 2music21 vs Flat
  3. 3music21 vs Fender Notion
  4. 4music21 vs Dorico
  5. 5music21 vs MuseScore Studio
  6. 6music21 vs LilyPond
  7. 7music21 vs Sibelius
  8. 8music21 vs ScoreCloud
  9. 9music21 vs TuxGuitar
  10. 10music21 vs DomiSol
  11. 11music21 vs Crescendo Music Notation Software
  12. 12music21 vs Harmony Assistant
  13. 13music21 vs Denemo
  14. 14music21 vs Guitar Pro
  15. 15music21 vs HarmonyBuilder
  16. 16music21 vs iWriteMusic
  17. 17music21 vs capella
  18. 18music21 vs SmartScore
  19. 19music21 vs Pizzicato
  20. 20music21 vs Launchpad

music21 alternatives compared

#PlatformScoreFree planFromRuns on
1Noteflight8.9No$4.08/moWeb
2Flat8.8Free plan—Android, iOS, Mac, Web, Windows
3Fender Notion8.7Free planFreeWeb, Windows, Mac, Linux, iOS, Android
4Dorico8.6Free planFreeiOS
5MuseScore Studio8.5Free planFreeLinux, Mac, Windows
6LilyPond8.3Free planFreeLinux, Mac, Windows
7Sibelius8.2No—iOS, Mac, Web
8ScoreCloud8.0Free plan$5.99/moWeb, Windows, Mac, iOS
9TuxGuitar7.8Free planFreeAndroid, Linux, Mac, Windows
10DomiSol7.8Free plan$10/moAndroid, API, iOS, Web
11Crescendo Music Notation Software7.5No$80/moWindows, Mac, iOS, Android
12Harmony Assistant7.5No—Windows, Mac, Linux
13Denemo7.3No—Windows, Mac, Linux
14Guitar Pro7.2No$69.95/moWindows, Mac, iOS, Android
15HarmonyBuilder7.2No$14/moLinux, Mac, Windows
16iWriteMusic7.0Free planFreeiOS, Android, Mac
17capella6.9No—Windows, Mac
18SmartScore6.9No$49/moWindows, Mac
19Pizzicato6.8No—Windows, Mac
20Launchpad6.7Free planFreeAPI, Linux, self-hosted, Web
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Questions about music21 alternatives

What is the best alternative to music21?

Noteflight, number 1 in music notation software with a score of 8.9 out of 10. The others here: Flat, Fender Notion, Dorico and 16 more.

What is the best free alternative to music21?

Flat is the best-ranked alternative with a free plan. 10 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.