Today's program features a group who's lifestyle produced forces that enabled them to create extraordinary music together yet these same forces made it impossible to sustain for more than a short time, The Mama's & The Papa's. Additional tunage from Jefferson Airplane, The Beatles, Simon & Garfunkel, The Everly Brothers, Marshall Crenshaw, Buddy Holly, Blind Faith, Patti Smith, Alejandro Escovedo, Garland Jeffreys, Marianne Faithful, Spirit, Todd Rundgren, Rickie Lee Jones, Lizanne Knott, Michael Franks, Alan Price Set, The Youngbloods, Loving Spoonful, Tim Hardin, Batdorf & Rodney, Brewer & Shipley, Aztec Two Step and The new Christy Minstrels.