Five world-class bassists and returning guests: Ron Carter (Miles Davis), Larry Grenadier (Brad Mehldau, Pat Metheny), Garry Karr, Dave Swift (Later...with Jools Holland), and Benny Rietveld (Santana, Miles Davis, Sheila E.) join hosts/bassists David C. Gross and Tom Semioli to discuss the state of the instrument and other topics pertaining to the "Big M."