Added Instrument Abstract Class and made Vec72 extend it
Added vec39
Merge branch 'master' of https://github.com/EmmettTan/AndroidSongSequencer
took away vec39, added back in vec216 and bass, small changes to instrument and vec classes
Added bass class, bass sounds don't play for some reason
Merge branch 'master' of https://github.com/EmmettTan/AndroidSongSequencer