The channel Ahoy on YouTube dove into Tracker music, and has a few callouts on how this materialized in the Warez scene. https://www.youtube.com/watch?v=roBkg-iPrbw

I listened to keygen music a great deal at one point. I'd run them through Winamp to produce something I could burn to a CD and listen to in the car. Pretty funny seeing Photoshop, Easy DVD Creator, Power ISO, and whatever else streaming across my car's track display.