Lys Symonette began her collaboration with Weill and Lenya in 1945 as Weill's musical assistant on Broadway. After Weill's death, she was Lenya's accompanist and musical adviser and now serves as Musical Executive of the Kurt Weill Foundation for Music in New York. Kim H. Kowalke is Professor of Musicology at the University of Rochester and President of the Kurt Weill Foundation for Music. He has edited two collections of essays about Weill and authored numerous essays on twentieth-century music and theater.