Frank Zappa gave us some useful stuff.
Ship arriving too late to save a drowning witch
"Let me sum it up for you. Information is not knowledge. Knowledge is not wisdom. Wisdom is not truth. Truth is not beauty. Beauty is not love. Love is not music. Music is the best"
Willin' (This one recorded on 19 July 1973 at Ebbet's Field.)
Which would never had got made if Frank hadn't slung* Lowell George out of the band. (The Mothers of Invention, if you have to ask...)
There are two stories. Take your pick.
Story 1 - Frank saw Lowell's potential and encouraged him to "pursue other opportunities" as they say
Story 2 - Frank was more than underwhelmed by the drugs references in "Willin'" and encouraged him to "pursue other opportunities" as they say