Complete Bass Guitar By Ear - 2 CD Relative Pitch Ear Training Course by Mark John Sternal. For Bass Guitar. Complete By Ear. Ear training CDs that work! Learn every note on your bass guitar completely by ear! There is no written text or sheet music to read. Over 50 recorded lessons progress through a proven system that will help you develop a strong musical ear, finger strength. Ear training, music theory. Beginner through intermediate. 2 CD Audiobook. Duration 1 hour 40 minutes. Published by MJS (MJ.CBGE).