Space to show the Music Engine, Up and Down Arrows to scroll. Sorry there is no mobile support, the engine is in Beta. To add: - Chord Support - Maybe the ability to add other instruments...we'll see if Scratch will support it - Suggested features: ~ Lengthen notes (@ClikBeetle) Looking for feedback :D This is ultimately going to end up in my game engine, hence why it is in one sprite. I would say 'feel free to use' but you might as well wait until it's version 1 or you won't get the full edition...