I almost forgot, I make music on my YouTube channel. Here are some Megalovanias I made on GarageBand. For some reason, I can't really upload a music I made from my phone to my laptop and upload them here, so I'll just drop in the links. Feel free to comment what you think of them.
Megalovania (GarageBand Version)
Omnilovania: GarageBand Edition
Underfell MEGALOVANIA (GarageBand Version)
Spongeswap Bibulus (In the formation of EarthBound Halloween Hack/Mother: Cognitive Dissonance)