dispose frame on close (when --no-exit)
editable track properties
score.ui cleanup
Score loading shows the name instead of path
score.draw.track/on-track-change
also plot previous values
use notes' x-offset instead of save it
use grey color for previous graph
(get-defined-synths)
property is a string not a keyword
(get-track-synth-program-list) + (property-acc)
use glue/eval-dm + "midi-initial-program" temporary
midi-program-list
midi-initial-program typo
read midi program from the string
program-name-to-number test