Suggestion: Shortcuts for Accidentals
While the sharp and flat accidentals can be accessed with the up and down arrow keys, I believe a way to input configure shortcuts to input accidentals directly would be great. The main reason I am suggesting this is to ease the workflow of people who use the other "non-traditional" accidentals (often used for microtonal and non-Western music). I believe a good way to implement this would be to have users select certain accidentals and have a key that effectively scrolls through them, one by one (I think the [square bracket] keys might be a good fit).