Conversation so far:
What year is Chris Barber's most recent work?
Chris Barber's Jazz Band with Sonny Terry & Brownie McGhee, Sonny, Brownie & Chris, was released in 2009
Is Chris Barber still in a group now?
On 12 August 2019, Chris Barber's management announced his decision to retire after some 70 years of performing.
What happened with Chris Barber after 2008?
On 23 July 2009, Chris Barber, Bilk and Ball played a one-off concert at Indigo2 at the O2 in Greenwich. The concert was presented by the British Music Experience.

Question: Did he perform after this?
Self-contained rewrite: Did Chris Barber perform after playing at the O2 in Greenwich?