Brian Doherty was most notably They Might Be Giants' first touring and session drummer, replacing their drum machine. They Might Be Giants (commonly abbreviated to TMBG) is an American alternative rock duo consisting of John Linnell and John Flansburgh, collectively known as the two Johns or John and John. Known for their experimental pop music, they have been popular on college campuses and earned a reputation for intellectual... A session drummer at practice A drummer is a musician who plays the drums, particularly the drum kit, marching percussion, or hand drums. ... A Boss DR-202 Drum Machine A drum machine is an electronic musical instrument designed to imitate the sound of drums and/or other percussion instruments. ...