We need to make the virtual instrument play!
- make the virtual diatonic accordion play wave-files while reading information out of midi-files
- make these things working:
1.) buttons outside the play/stop bar for step-by-step-learning, bird's-eye-perspective of diat. acc., tempo scale , On/Off-Switch for left hand
2.) play/stop bar
3.) transposing the song after selecting the tonality
4.) changing the model and type
(other picture of musical instrument) and change the song-file, which is written for the selected model/type