Match My Sound™ uses the open source notation software MuseScore to render the sheet music. It means that one can upload notation files that are either in MuseScore or MusicXML format. The latter can be exported from most notation programs. When you happen to have the music on paper then there are basically two options:
Assessment and Feedback
Sing or play to your computer or phone and get assessed. Match My Sound™ listens, then gives immediate feedback on how to improve.