Conversation so far:
What was Paul Butterfield's Better Days about?
After the breakup of the Butterfield Blues Band, Butterfield formed his next band, Paul Butterfield's Better Days.
Who were the members of Paul Butterfield's Better Days?
Butterfield formed Paul Butterfield's Better Days with Chris Parker, Amos Garrett, Geoff Muldaur, Ronnie Barron and Billy Rich.

Question: when did paul's solo career start?
Self-contained rewrite: When did Paul Butterfield's solo career start?