Downloadable computer software for playing original artists' multi-track song files, displaying dynamic sheet music for each song file instrument track and displaying animations of fingering positions used for each instrument track in each song file, all of which is synchronised in a playback format, which software also provides users the ability to mute one or more vocal and/or instrument tracks in the original artists multi-track song file and then record and replace that track with the users own performance
Electrical and Scientific Apparatus