Scores, or sheet music, are created on your computer using the free and open source MuseScore notation software, available from MuseScore.org. MuseScore runs on Windows, Mac, and Linux.
All documentation and support for the MuseScore software is offered at MuseScore.org.
After logging in to your account on MuseScore.com, click the Upload link and follow the instructions. Or, use “File→Save Online...” in the MuseScore notation software to upload a score directly.
No, there is no limit on the number of scores you can have. However, if you have a free account, you can only see the most recent 5 scores displayed.
Scores created with other applications cannot be uploaded to MuseScore.com directly. However, the MuseScore notation software supports the industry standard MusicXML format for the exchange of scores between programs. If your notation software can export your score in the MusicXML format, then MuseScore can import it. The score can then be saved in MSCZ format (the native format for MuseScore) and uploaded to MuseScore.com.
MuseScore.com uses the default MuseScore SoundFont “TimGM6mb” to playback your score online. So in case you made your score with a different SoundFont, the online playback will sound different. Join the Improving MuseScore.com group and add add your voice to this discussion if you like to see this changed.
MuseScore.com supports over 40 fonts and font families. When uploading a score that uses a font not available on MuseScore.com, MuseScore.com attempts to replace an unsupported font with one that is a close match. The resulting score might not look the same as in MuseScore: systems break differently, altered layouting of text elements, ...
Use one of the following fonts to avoid problems:
Times New Roman