as a staff conductor for live orchestra broadcasts, and the following year appeared as a conductor and soloist at the Hollywood Bowl. His work impressed WOR's owners, who created a new radio concert series featuring Wallenstein's eponymous studio orchestra, the Wallenstein Sinfonietta. He was named music director of WOR in 1935, and served in that capacity until 1945. During those years, his broadcast programs were highly successful, reaching millions. The programs included cycles of all of J.S. Bach's cantatas, Mozart's piano concertos, and infrequently-performed symphonies by Mozart and Haydn, in addition to works by contemporary American composers. For his work on these broadcasts, Wallenstein was awarded a Peabody Award for Outstanding Entertainment in Music in 1941. After moving back to Los Angeles in 1943, he was named music director of the Los Angeles Philharmonic, succeeding the ailing Otto Klemperer. During his tenure, Wallenstein championed the works of American composers, including Aaron Copland, Morton Gould, and Samuel Barber. In total, forty-seven American composers received performances from Wallenstein during his directorship. Wallenstein was known to advocate for the musicians of the Philharmonic, successfully arguing for higher salaries and expanding the orchestra's repertoire. He refused to fire musicians suspected as communist sympathizers during the "Red Scare". He also hired double-bassist Henry Lewis, marking the first time an African-American musician was hired by a major orchestra. Wallenstein left the Los Angeles Philharmonic in 1956. He made frequent guest-conducting appearances around the United States and Europe. These included concerts with the New York Philharmonic, Philadelphia Orchestra, Symphony of the Air, and a stint as director of the Caramoor Festival from 1958 to 1961. In his later life, Wallenstein turned to educational affairs. From 1962 to 1964, he oversaw an educational program for young American conductors at the Peabody Institute. He became a member of the Juilliard School faculty in 1968, and was appointed director of orchestras in 1971. Wallenstein's final conducting appearance was with the Juilliard Symphony Orchestra in 1979. He died in Manhattan on February 8, 1983, at the age of 84. Personal life Wallenstein married his wife, Virginia (née Wilson), in 1924. She died in 1973, after which Wallenstein moved permanently to New York. They had no children. Recordings Wallenstein made a number of LP recordings during his career. He recorded solo cello repertoire for Victor in the 1920s, and was accompanied in several recordings by his wife, Virginia, herself a pianist. He