This is a port of Kelvin Lawson's pykaraoke library (upgraded from Python 2 to Python 3 and packaged)
Install with...
pip install bawx-player
play_karaoke.py
from bawx_player import pycdg
player = pycdg.cdgPlayer('some_song.cdg', None)
player.Play()
pycdg.manager.WaitForPlayer()