Mama Cass on "The Johnny Cash Show" (complete and uncut)

Apparently a featured guest that episode (Sept. 20, 1969), Cass Elliot of The Mamas And The Papas gets a solo spot, "Soft and Tenderly," then a bantering medley of country/western hits with the host that's as much fun to watch as it appears to have been for them to tape. Can anybody tell me the name of her solo number?