Ticket prices were $2.30, $2.80, and $3.30. See review in the New York Times: Salzman, Eric. “CONCERT PROGRAM COVERS 400 YEARS; Canticum Musicum Presents Machaut Mass With Old and Odd Instruments (Published 1961).” The New York Times, 15 Mar. 1961. NYTimes.com, https://www.nytimes.com/1961/03/15/archives/concert-program-covers-400-years-canticum-musicum-presents-machaut.html.