Conversation so far:
What caused the disbandment with Frank Zappa?
In late 1969, Zappa broke up with the band, Mothers of Invention. He often cited the financial strain as the main reason.
When did Frank Zappa and Mothers of Invention disband?
In late 1969.

Question: What did Zappa do afterward?
Self-contained rewrite: What did Zappa do after the disbandment of Mothers of Invention in late 1969?