. . . "joint recital" . . . "chamber music performance" . . "Entered from booking ledger, the New York Times concert listing and review, and information from the Karl Weigl Foundation. According to the review, the concert was made possible by a grant from the recording industries trust fund of the American Federation of Musicians.\r\nU.S. PREMIERE of Karl Weigl's 5 SONGS FOR SOPRANO AND STRING QUARTET, OP. 40\r\nWORLD PREMIERE of Weigl's STRING QUARTET NO. 7 IN F MINOR\r\n\"MUSIC PROGRAMS.\" New York Times (1923-Current file), Oct 07 1956, p. 132. ProQuest. Web. 1 Apr. 2021.\r\n\"WEIGL'S 'FIVE SONGS' PLAYED AT CONCERT.\" New York Times (1923-Current file), Oct 12 1956, p. 35. ProQuest. Web. 2 Apr. 2021.\r\nString Quartet No. 7. http://www.karlweigl.org/works.php?work=99. Accessed 2 Apr. 2021." . "Wolf-Mahler-Weigl Evening" . . . . . "1956-10-11T20:30:00"^^ .