If it seems unclear, here's what you do. Make a sprite with an object or something, (it can also be your voice) and it will sort of be making a song. For audio, you could use drums, or any other default scratch sounds, you can also record your own! Try not to ruin it and try to stay with the beat! Ok, have fun remixing!
I ALWAYS HAVE TO REMIX KOOKOOMAKOO'S PROJECTS (also credit to everyone)
