Add beat count adjustment
extract insrument
wip parts
Quantize to 96 ticks per beat
fallback to webkitAudioContext
clear scheduled notes on stop
Break out the controllers into files
Render part previews
preview playbars
mute toggle UI
re-enable meta-r to refresh
cleanup
redirect root to parts
persist songs
delegate instrument to the part
Simplify routes and dry up controllers
use unicode not webdings for play button
wip instruments
relocate oscilator management
Put nasty song preloading code in song model