Music Mill scored its first hit in a big way in 1975, when “Reconsider Me” by Narvel Felts reached number two on the Billboard Hot Country Singles charts. “In the studio’s first three years of operation,” Cash Box reported, “there was never a week when Music Mill sessions weren’t on the country charts.” Other artists who recorded at the studio over the years included George Jones, Carl Perkins, Roy Clark, Bobby Bare, and Hank Williams, Jr.

By 1977, Cartee's publishing companies, Music Mill and Alan Cartee Music, had built up a roster of 38 songwriters and opened an office in Nashville. In addition to Montgomery and Alexander, staff writers included Ava Aldridge, Eddie Struzick, and Max Lee. Aldridge alone had more than 55 of her songs recorded, and while working for Music Mill as director of creative services, “became the first woman to produce a session in a Muscle Shoals studio.”