Apr 3 Sigismund Ritter von Neukomm, Austrian composer and royal chaplain master, dies at 79 Apr 7 Anton Diabelli, Austria publisher and composer, dies at 76 Apr 16 Johann Baptist Cramer, German-British pianist, composer and music publisher, dies at 87 Feb 1858 Deaths in Music by Year Jun 1858 Famous Singers Country Singers Jazz Singers Opera Singers Pop Singers Rappers Rock Singers