Projectitis posted on the forum about a XM music module player that he put together.

Projectitis ported an XM player (libxm by Artefact2)to Teensy to make the project work.  The player was originally built with a Teensy 3.6, but it should work on a Teensy 3.5 or Teensy 3.2 as well.

Code for the project can be found on GitHub.