If you want to make REAL music here is something to teach something:
1: make a new code and make it “when this is created”
2:and then scroll until you find “play a sound” or something like that
3:change the sound into files and you can download the sounds on your gallery too
4:since the audio of the files are only available for 30 seconds you can make it longer by tapping “when the sound ends” and then tap “responds” no then do the same to step 2
I think that will help :)