A founding member of the Ann Arbor-born rock band Tally Hall, known for their albums “Marvin’s Marvelous Mechanical Museum” (2005) and “Good & Evil” (2011), as well as their internet variety series “Tally Hall’s Internet Show.” Gallagher, the band’s drummer, amicably parted ways from Tally Hall in May 2004, and was replaced by Ross Federman, ’13.