This is ScratchBox, an experimental drum beat composer. Each row of boxes is a different part of a drum set, and there are 32 beats of composing space. Use the sliders at the top to change the playback speed, and press the green play button once your beat is done to play it back to you. Enjoy!
This project was made without use of any tutorials or previous knowledge of array coding. The drum sounds are all from the Scratch sound library.