Ms. X
A monologue by Warren Cuccurullo in which he describes working in New York City and meeting a beautiful woman at the Empire State Building, who turns out to be endowed with a penis. This may be Warren's first appearance with Zappa - he says he's "with his friend Vinnie, who should be here", possibly referring to Vinnie Colaiuta.
From United Mutations: "Warren was introduced to Frank Zappa just prior to the Halloween 1976 run by Davey Moire, one of Zappa's sound engineers and a friendship ensued. He performed the "Story of Ms X." at the 1978 Palladium Halloween show as a guest, and was a full member by the resumption of the tour in February the next year, a tour that lasted until April." - https://www.united-mutations.com/c/warren_cuccurullo.htm