- Sep 4 Blackie Lawless [Steven Duren], American heavy metal singer and guitarist (W.A.S.P.), born in Staten Island, New York
- Sep 5 Roine Stolt, Swedish guitarist (The Flower Kings), born in Uppsala, Sweden
- Sep 7 Diane Warren, American songwriter ("Music of My Heart"; "If I Could Turn Back Time"), born in Van Nuys, California
- Sep 7 Michael Feinstein, American jazz pianist, singer and Gershwin-ophile ("Isn't It Romantic"), born in Columbus, Ohio
- Sep 8 "Wild" Mick Brown, American rock drummer (Dokken; Ted Nugent), born in San Mateo, California
- Sep 8 Frank Tovey, British musician (Fad Gadget), born in London (d. 2002)
- Sep 10 Johnny Fingers [John Moylett], Irish rocker (Boomtown Rats - "I Don't Like Mondays"), born in Dublin, Ireland
- Sep 10 Johnny Hickman, American rock guitarist (Cracker), born in Redlands, California
- Sep 12 Barry Andrews, British rock musician (XTC; League of Gentlemen; Shreikback), born in West Norwood, London
- Sep 12 Leslie Cheung, Hong Kong actor, singer and composer (Farewell My Concubine), born in Hong Kong (d. 2003)
- Sep 13 (Joan) "Joni" Sledge, American vocalist (Sister Sledge "We Are Family"), born in Philadelphia, Pennsylvania (d. 2017)
- Sep 13 David Mansfield, American session and touring fiddler, guitarist, mandolin player (Bob Dylan; The Alpha Band; Buce Hornsby and The Range), and film score composer, born in Leonia, New Jersey
- Sep 15 Jaki Graham, British R&B singer-songwriter ("Could It Be I'm Falling In Love"), born in Birmingham, England
- Sep 15 Maggie Reilly, Scottish folk singer, born in Moodiesburn, Scotland
- Sep 15 Ned Rothenberg, composer and multi-instrumentalist, born in Boston, Massachusetts
- Sep 16 Charles Fearing, American touring and session guitarist, songwriter (Raydio), and producer, born in the USA
- Sep 16 Dave Blood [Schulthise], American rock bassist (The Dead Milkmen - "Punk Rock Girl"), born in Ridley Park, Pennsylvania (d. 2004)
- Sep 16 Peter Zaremba, American rocker (Fleshtones), born in Queens, New York
- Sep 19 Lenny Castro, American session and touring percussionist (Melissa Manchester; Toto; Eric Clapton; The Crusaders), born in New York City
- Sep 22 David Krakauer, American Grammy Award-winning klezmer, jazz and classical clarinetist (Klezmer Madness!), born in New York City
- Sep 22 Debby Boone, American singer (You Light Up My Life), born in Hackensack, New Jersey
- Sep 22 Masayuki Suzuki, Japanese singer (Rats & Star)
- Sep 23 June Forester, American country singer (Forester Sister - "Mama's Never Seen Those Eyes"; "Men"), born in Lookout Mountain, Georgia
- Sep 29 Suzzy Roche, American singer (The Roches), writer and actress, born in Park Ridge, New Jersey
About September 1956
How Old? 67 years old
Generation: Baby Boomer
Leap Year: Yes
Country Singers
Jazz Musicians
Opera Singers
Pop Stars
Rappers
Rockers