Camp Jam Rock Solid Bass, Book & CD. Is perfect for all musicians - whether you are just starting out or you've been playing a few months, the lessons and exercises are not only fun to play, but are proven effective to get budding rock stars jamming right! The " Rock Chops " section will develop your technique to get you laying down kickin' bass lines right away & " Rock Styles " inc helpful playing tips and tricks on all the different styles and eras of Rock music.