Just what I wanted!
I was looking for a way to load my own midi files (made with Piano Motifs), and then be able to inspect the keys played, so I can reproduce parts in audio recordings. This app does exactly that and you can adjust the speed while you listen and watch the music being played. There are several pre loaded midi files too. I looked at several apps that are basically games with flashy graphics that all expect payment. This app is free and does just what I wanted with a low footprint and no cost. Well done for making it!
