Discussing the music of the Mothers of Invention and interviewing Frank Zappa

First broadcast on August 01, 1970. Discussing the music of the Mothers of Invention and interviewing Frank Zappa. Songs include "Who are the Brain Police," "Brown Shoes Don't Make It," "Concentration Moon," "Mom and Dad," "Bow Tie Daddy," "Harry, You're a Beast," "What's the Ugliest Part of Your Body?" "Trouble Every Day," "Very Distraughtening," "White Ugliness" and "There Will Come a Time."