Conversation so far:
What did Mick Taylor do with the Rolling Stones?
After Brian Jones was removed from The Rolling Stones in June 1969, John Mayall and Ian Stewart recommended Mick Taylor to Mick Jagger.
What year was that when John Mayall and Ian Stewart recommended Mick Taylor to Mick Jagger?
Mick Taylor was recommended to Mick Jagger in 1969

Question: How long did he play with the Stones?
Self-contained rewrite: How long did Mick Taylor play with the Rolling Stones?