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:
MatchMySound™ can synchronize any audio or video track with standard notation, tablature or lyrics+chords automatically, within seconds.