working with michael
Merge branch 'hTrack' of https://github.com/VT-CHCI/SoundOfFractions into hTrack

# By Michael Stewart
# Via Michael Stewart
* 'hTrack' of https://github.com/VT-CHCI/SoundOfFractions:
  maybe made progress on multiple component (instrument) issues.
added delete button (not working),
moved static un/roll buttons