MuseScore is a free music notation and composition software available for Windows, Mac, and Linux.

It allows for fast and easy note entry on a virtual note sheet. It has an integrated sequencer to allow for immediate playback of the score. MuseScore can import and export MusicXML and standard Midi files.

MuseScore is available in more than 40 languages and is rapidly becoming the leading free music notation software and often praised as a cost effective alternative for expensive software.

MuseScore features a direct connection with the sheet music sharing site MuseScore.com via the MuseScore Connect panel. This gives users direct access to thousands pieces of sheet music shared by the community.

MuseScore.com also invites users who share sheet music frequently to upgrade to MuseScore.com PRO, which features more onlinemixing tools and no ads. It also allows users to upload and share more sheet music, since the free version offers space for at most five scores stored online. It must be noted that while MuseScore.com has a paid subscription model, the actual software, MuseScore, remains completely free and open source software.