This is a stripped-down version of MPD with a "chiptune" (8bit-like music) playlist.
Players can control the volume with the /music chat command. Like the original MPD mod, it can take some time before the music starts.
One day, I had the idea that 8bit music would fit Minetest's look-and-feel pretty well, and should compress quite well (good for servers and download times). And indeed, we have here 15 tracks for 30 minutes of music and less than 8mb total.
Music: Eric Skiff - Resistor Anthems - Available at http://EricSkiff.com/music
Music: Eric Skiff - Resistor Anthems II - Available at http://EricSkiff.com/music
NOTE: the original MP3 have been converted to ogg format AND downgraded to lower quality in order to downsize them nearly as much as possible.