I guess just to throw in another quick question, I've seen some people have what seems like gifs playing as their background image and almamplayer hasnt been taking mine. Is that supposed to be supported or is it just some editing trick on their part?
hi ! the note spacing works by setting the highest and the lowest note to the margins and evenly spreading out the notes between them so if u have really high and really low notes it could get a little cramped,. i'd probably try moving up/down the track with the lowest/highest notes an octave for the midi so the range of the notes is smaller.
animated backgrounds are not supported right now, i think people just do a solid color and chroma key it in a video editor