Hi guys, Welcome to the Advanced Video Search Engine, and you are watching Bass Musician Magazine - Dr Kertz, Wrist Position and Posture Advice. That video is uploaded by Bass Musician Magazine at 2015-05-08T13:09:04-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [CahjRIV5-Yw]