On September 16, 1967, Frank Zappa and the Mothers of Invention made a brief 10 minute appearance on Fred Weintraub’s WOR-TV New York show “From The Bitter End”. They lip synched “Son Of Suzy Creamcheese” from Absolutely Free, then performed an improvisation (above) which has come to be known as “In Memoriam, Hieronymus Bosch” which appeared on the bootleg, Apochrypa.