Mount St. Mary's Concert Excerpt
Frank Zappa

The, the signals that we are giving I'll explain to you very simply. This means 'free improvisation' and finger symbols told the performers which of the fragments they were to uh, play at any given moment. Anyway, the next piece that we're going to play is in standard notation, and it's actually pretty tame compared to the other five. It's called The Collage Two, and it was written last Thursday.
(audience laughter)