GCR Audio, formerly known as Trackmaster Audio and Inner Machine Studios, is a recording studio at 564 Franklin Street in Buffalo, New York, United States. The building itself was originally a carriage house built in 1864, and converted to a Girls' School and Convent in 1890 named St. Mary's Seminary. The Chapel / Meeting room was converted by Alan Baumgardner and Kim Ferullo to a studio space designed by John Storyk of the Walters-Storyk Design Group in 1976, and operated as Trackmaster Audio and later, Ear Candy Audio, until 2000. The space hosted bands and musicians such as Yes, Melanie, Rick James, Ani DiFranco, Mark Russell, and Flaming Lips among others.