Playing a four-string bass well depends on knowing the basic scales. Practice your scale skills with the help of a professional bass player in this free video. Expert: Boudro Bio: As a bassist/songwriter/producer/artist, Boudro has embraced the “game”, from praise-filled gospel to cutting edge hip hop. Filmmaker: Pfelton Sutton Series Description: The bass guitar is the root of a band’s musical structure. Perfect your bass playing techniques with the help of a professional bass player in this free video series.