DRUM MACHINE - Requesting all a feedback

Hello Friends,

I would like to get some feedback for the Drum Machine Project. It is not passing all the FCC tests for some reason ( I am still working on that). Apart from that can you take a look at the code and give me your thoughts on how it can be made better? Thanks for the help, :slight_smile:

Project Link: https://codepen.io/rrahul17498/full/REoobP