Music sounds wrong on Simulator

I encountered strange playback of my game's music when loading the PDX into the simulator. I haven't been able to test it on a physical Playdate.

You can view videos of the music playing on the Playdate Squad discord. I couldn't work out how to upload these directly to the forum.

Simulator: Version 1.9.3 (133541)
OS: macOS 12.3 (21E230)

I'm happy to share the JSON and/or PDX if helpful for debugging. Thanks!

Hmm, it does sound like something's wrong. If you don't mind, can you private message the files to me? Thanks!