Ported my MOD player from Uno to Teensy 3.1 
That's nice. Is this a SHOW and TELL without the TELL ? (schematic , code)
Depends, if you are tech savvy enough to check the YouTube description 
There is a link to the Google Code project with source and more detailed description about the project. Teensy 3.1 has built-in 12-bit DAC so there isn't much of a schematic (pretty much all the wiring is for the LED's).