Apr 15 Pedro Infante, Mexican actor and ranchero singer, dies as co-pilot in a plane crash at 39 Apr 29 Olallo Morales, Spanish-Swedish pianist, composer, conductor, and educator, dies at 82 Apr 30 Ludwig Schiedermair, German musicologist (Beethoven), dies at 80 Mar 1957 Deaths in Music by Year May 1957 Famous Singers Country Singers Jazz Singers Opera Singers Pop Singers Rappers Rock Singers