Christopher has toured extensively, performing at prestigious concert halls and festivals worldwide, including the Hollywood Bowl (2013), the Royal Opera House in Muscat, Oman, (2014, 2016) the Walt Disney Concert Hall (2007), the Vancouver Music Festival (2013), The Beacon Theater (2018), The Orpheum Theater (2018), the Segerstrom Center for the Arts Concert Hall (2013), the Chicago Theater (2019), the Dolby Theater (2019), and Radio City Music Hall (2019). Among the many artists, ensembles, and orchestras, Christopher has toured with the Grammy nominated band DeVotchka, the American Ska Punk band Streetlight Manifesto, performed with jazz luminaries Charlie Haden, Bob Sheppard, Joe LaBarbara, Larry Koonse, Derek Oles, and Slide Hampton, as well as, rock legend Mike Garson (David Bowie, Smashing Pumpkins), and Palestinian Pop star and 2013 Arab Idol winner, Mohammad Assaf. He was selected by Mike Garson, among others, to perform his Symphonic Jazz world premier entitled “Symphonic Suite for Healing.” Christopher is a member of the internationally recognized orchestra, MESTO, specializing in Middle Eastern Classical music, and the Indian/Jazz fusion group Mahadev. He is an active free-lance musician performing and recording drums and percussion for independent films, commercials, jazz ensembles, various bands, and singer-songwriters.