dont implement Scrollable
no gaps + better scrolling
white score background
add size data to track
remove protocols  (interfaces) & highlight notes
add player-panel
listen to player position
fix get-segment since get-track update
right-click menu & edit-note
overall fixes to track drawing
extended track api
initial graph drawing
merge the original note
test graph drawing in ui
track reloading
initial graph drawing (that works)