Book excerpt: This book presents everything a beginning or intermediate bass player needs to know to participate in a jam session. There are sections that describe the anatomy of a jam session, jam session etiquette and chords and keys for jamming. A play-along CD is included with 9 typical bluegrass jam tunes. the tunes are played twice: once with the tune played on the left channel and a verbal description on the right channel and once in stereo. Joining a jam session can be intimidating. This book presents everything a beginning or intermediate upright or electric bass player needs to know to participate in a jam session. There are sections that describe how jam sessions work, and jam session etiquette. the book also describes the typical chords and keys for jamming and describes typical bluegrass rhythm. A section is included on the role each instrument plays in bluegrass rhythm. A play-along CD is included with 9 typical bluegrass jam tunes. the tunes are played twice: once with the tune played on the left channel and a verbal description on the right channel and once in stereo.