More recently he has toured #theGuyBarkerJazzOrchestra – a 15 piece big band featuring Rosario Giuliani (alto saxophone; Italy) and Per Johansson (tenor saxophone; Sweden) – performing DZF, a reworking of Mozart's Magic Flute with Michael Brandon narrating the story as a Raymond Chandler-style novel, retold by Robert Ryan.
Barker was music director and arranger for the opening gala concert "Jazz Voice: Celebrating a Century of Song" at the London Jazz Festival annually from 2008 to 2014. He was also music director and arranger on a number of BBC Radio 2 Friday night is music night shows featuring the Guy Barker Jazz Orchestra with the BBC Concert Orchestra, celebrating the music of Billie Holiday / Duke Ellington and Billy Strayhorn / Ella Fitzgerald, Aretha Franklin and Dusty Springfield / Jazz Royalty to celebrate the Wedding of William and Kate
Barker was appointed Member of the Order of the British Empire (MBE) in the 2015 New Year Honours for services to jazz. He was awarded the BASCAGold Badge in 2013.