Click anywhere to create note. Scroll note. space simulate. M to change mode (new, edit and delete) B/V to change rhythmic length. J/N to change accuracy (Recommend for advance user). Recommend accuracy: ratio accuracy 1 2 2 4 4 8 8 16 Other ratio might not work properly. S/L save and load. P pause and play. F Fast forward D Delete all. Feature -Multiple Note at same time -tempo -Delete note. -Edit rhythmic length of note. -Scrollable Planed feature. -UI -Improve Edit and Delete
Just a showcase The Star-Spangled Banner Space to replay song you can click anywhere to create note and use space to replay. https://scratch.mit.edu/discuss/youtube/ZUcZQLfZiWA/ You can do this if you want.