letter & number keys --- play notes left + right arrows --- change tempo click bar -- mouse x controls instrument down arrow --- stamp note (to remember it)
isomorphic keyboards are layouts for musical notes such that the same spatial relationship always corresponds to the same musical relationship. unlike a piano, transposing a musical sequence to a different key or base-note will keep the same muscle memory. this layout uses the Wicki-Hayden layout: https://en.wikipedia.org/wiki/Wicki%E2%80%93Hayden_note_layout inspired by: https://www.codeproject.com/Articles/1201737/Musical-Study-with-Isomorphic-Computer-Keyboard
