More todos:
- Zoom and next/prev page controls.
- Top left and bottom right almost-transparent dots to fix min size and position of score.
- Showing/hiding individual element types.
- Need to allow user to easily select elements. Could check if user clicks within an element using high cost intersection and if not, check within bounding box, then within inflated bounding box. Elements should be ordered smallest to largest for bounding box test.
- Stems on minims not being found.. detection order back the front.
- Finding lots of semiquaver beams as semibreve rests. Second page of Op 72 has runs of demisemiquavers causing some beam detection problems.

Home time.