Change Location of Music Storage

I’m continuing forward with my project and I’m using a CM4 module with a waveshare board and a Tone 1 board. I have a NVME SSD mounted up and I’d prefer to use it as purely the music storage location. Unfortunately there’s no place in the UI to change or add local physical drive. Any thoughts on where to edit this in a config to experiment with it for now?

Thanks!

Dave