Mary Beth Armes, Soprano, and John Williams, Countertenor
Entered from booking ledger and New York Times concert listing and review. “Who Makes Music and Where.” New York Times [New York, N.Y., United States], 26 May 1974, p. 110. AL. Davis, Peter G. “2 Singers Present a Baroque Evening.” New York Times [New York, N.Y., United States], 31 May 1974, p. 23.