First attempt at implementing loops
Fixed copy/paste error
Minor bugfix for on_beat_stop_playing block
Testing loop identifiers. Music blocks also re-ordered slightly.
Fixed typo in music.js
Debugging loop identification
Fixed play blocks parsing input incorrectly
implemented play_with (forgot earlier), also fixing variable note input
Fixed simple play message address
Fixed incorrect code generation in music_start_playing_with block
Fixed melody names not delimited with quotes in the start playing blocks
Woops stop_playing also needed string delimiters
Instrument name handling fix