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In page Frederick Jacobi:

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In works from what has become known as Jacobi's Indian period (late 1920s and early 1930s), he incorporated rhythms and other elements from indigenous Native American music he had heard in his travels through the American southwest. Indeed, he spent the winter of 1927 with the Navajo and Pueblo of New Mexico studying their music.[3] In 1942-1944 Jacobi collaborated with Canadian playwright and librettist, Herman Voaden, to produce the opera, The Prodigal Son, which debuted at the American Opera Society of Chicago in May 1945.