Jun 4 Serge Koussevitzky, Russian-American conductor (Boston Symphony, 1924-49), dies at 76 Jun 17 Carl Vogler, Swiss composer, dies at 77 Jun 23 Armin Knab, German composer (Wunderhorn), dies at 70 May 1951 Deaths in Music by Year Jul 1951 Famous Singers Country Singers Jazz Singers Opera Singers Pop Singers Rappers Rock Singers