Conversation so far:
When did Wilson begin producing records?
Brian attempted to establish himself as a record producer by working with various artists.
On July 20, 1963.
What artists did he work with?
Brian's other non-Beach Boy work in this period included tracks by the Castells, Donna Loren, Sharon Marie, the Timers, and the Survivors.
Did he work with anyone else?
Phil Spector-led girl groups such as the Crystals and the Ronettes.

Question: What other success did Wilson have?
Self-contained rewrite: Other than his musical successes with Phil Spector and non-Beach Boy work, What other success did Brian Wilson have?