- Apr 4 Seóirse Bodley, Irish composer and professor of music (University College Dublin), born in Dublin, Ireland (d. 2023) [1]
- Apr 8 Jaroslav Smolka, Czech composer (Metamorfosi), music director, dramaturge, pedagogue, and musicologist, born in Prague, Czechoslovakia (d. 2011)
- Apr 10 Philip Corner, American composer, born in New York City
- Apr 10 Rokusuke Ei, Japanese author and lyricist (Sukiyaki), born in Asakusa, Tokyo (d. 2016)
- Apr 12 Montserrat Caballé, Spanish bel canto operatic soprano, and unlikely pop star (with Freddie Mercury - "Barcelona"), born in Barcelona, Spain (d. 2018)
- Apr 13 Shani Wallis, Irish-American singer and actress (Oliver!), born in Tottenham, Middlesex, England
- Apr 14 Morton Subotnick, American electronic music composer (Silver Apples of the Moon; A Sky of Cloudless Sulphur), born in Los Angeles, California
- Apr 15 Roy Clark, American country and bluegrass singer, guitarist, and banjo player (Hee Haw; The Tonight Show), born in Meherrin, Virginia (d. 2018)
- Apr 16 Perry Botkin Jr, American arranger, composer ("Nadia's Theme"), and producer (Incredible Bongo Band), born in New York City (d. 2021)
- Apr 21 Ian Carr, Scottish jazz musician (Nucleus), born in Dumfries, Scotland (d. 2009)
- Apr 24 Freddie Scott, American singer and songwriter ("Cry to Me"), born in Providence, Rhode Island (d. 2007)
- Apr 25 Jerry Leiber, American songwriter (Leiber & Stoller - "Hound Dog"; "Jailhouse Rock"; "Is That All There Is?"), born in Baltimore, Maryland (d. 2011)
- Apr 26 Ilkka Kuusisto, Finnish opera composer and arts administrator (Finnish National Opera, 1984-92), born in Helsinki, Finland
- Apr 27 Calvin Newborn, American R&B and jazz guitarist, born in Whiteville, Tennessee (d. 2018)
- Apr 28 Karl Heinz Wahren, German pianist and composer, born in Bonn, Germany
- Apr 28 Oliver "Bops Junior" Jackson, American jazz drummer, born in Detroit, Michigan (d. 1994)
- Apr 29 Darijan Božič, Slovenian composer and conductor, born in Slavonski Brod, Kingdom of Yugoslavia (d. 2018)
- Apr 29 Raymond Hill, American tenor saxophonist (Kings of Rhythm), born in Clarksdale, Mississippi (d. 1996)
- Apr 29 Rod McKuen, American singer-songwriter ("Love's Been Good to Me"; "Jean"; "Without A Worry In The World"), and poet (Lonesome Cities), born in Oakland, California (d. 2015)
Willie Nelson (90 years old)
Apr 29 American country singer-songwriter ("Crazy"; "On the Road Again"), born in Abbott, Texas
About April 1933
How Old? 90 or 91 years old
Generation: Silent Generation
Leap Year: No
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