[citation needed] He then went on to compose the scores for several short films, including To Kill A Bore (2006) and They Say It's Wonderful (2006), and In Pursuit of Woody Allen (2007).
[citation needed] In 2007, he provided additional music for another short, Room Service, as well as for his first feature film, Mama's Boy.
[4] In 2009, Kaefer composed for another short film, Forget Me Not, and contributed the theme music for Focus Earth with Bob Woodruff.
[5][better source needed] In 2010, Kaefer composed his second full-length film score for the crime-drama The Rise and Fall of Their American Dream and for another short, Lily of the Feast.
[7] Kaefer worked on the score for the live-action sequences of Quantum Break, a third-person shooter action game released for the Xbox One on April 5, 2016.