Ernest Bloch (July 24, 1880 – July 15, 1959) was a Swiss-born American composer. Bloch was a preeminent artist in his day, and left a lasting legacy. He is recognized as one of the greatest Swiss composers in history. As well as producing musical scores, Bloch had an academic career that culminated in his recognition as Professor Emeritus at the University of California, Berkeley in 1952.
Charlotte "Lotte" Pauline Sophie Lehmann (February 27, 1888 – August 26, 1976) was a German-American lyric soprano noted for her successful performances with international opera houses, on the recital stage and in teaching.: 5 She gave memorable appearances in the operas of Richard Strauss, Richard Wagner, Ludwig van Beethoven, Puccini, Mozart, and Massenet. The Marschallin in Der Rosenkavalier, Sieglinde in Die Walküre and the title-role in Fidelio are considered her greatest roles. During her long career, Lehmann also made almost five hundred recordings in both opera and art song.