Most of the building's interior was extremely simple, with walls often left as bare concrete aggregate with wall-to-wall carpeting on the floors in several areas. The theaters, on the other hand, were far more finely detailed. Tully Hall was (in accordance with the desires of Alice Tully herself) designed with wood batten with dampening behind, and lavender carpet “casting 1930s-ish mauve lights in the foyer.” Though the theater's lobby was large, it was depressed several feet below grade. The theater was designed mainly for recitals and chamber music performances, but because the first three rows of seats could be replaced by an expanded stage, it could also accommodate small orchestras. Tully Hall is located within of the subway tunnel under Broadway, and this required the insertion of a one-inch-thick, cork-lined asbestos pad between the theater's foundation and bedrock, as well as the isolation of the theater's walls from structural columns. Tully Hall's acoustics were praised as being among the best of any performance hall in Lincoln Center, thanks to the work of acoustician Heinrich Keilholz (who consulted on the acoustics of the entire building as well).