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The Historic New Orleans Collection
Cosimo Matassa at Jazz Fest in 1986.

Cosimo at 100

The Sound That Shaped New Orleans

April 18, 2026, 1–4 p.m.

Panel: 1–2:30 p.m. (Williams Research Center, 410 Chartres Street)
Party: 2:30–4 p.m. (Tricentennial Wing, 520 Royal Street) 

Join us in celebrating the 100th birthday of Cosimo Matassa (1926–2014), architect of the New Orleans sound! American Routes host Nick Spitzer will lead a slate of special guests—including music scholar Matt Sakakeeny and legendary New Orleans musician Deacon John Moore—in conversation about Matassa’s life and legacy.

After the discussion, join us at 520 Royal Street for a birthday celebration featuring the Mahogany Blue Baby Dolls and DJ Buy It Now, who will spin hits from Matassa’s J&M Recording Studio. While the music plays, attendees are invited to grab a slice of cake and design their own custom album covers.

Don’t miss this special opportunity to cool off during French Quarter Fest while honoring a local legend. Admission is free and open to the public; no registration is required.

Cosimo Matassa at Jazz Fest in 1986.

About Cosimo Matassa  

Born in New Orleans 1926, Cosimo Matassa was an Italian American recording engineer and studio owner who played a seminal role in shaping the New Orleans sound of R&B and early rock ’n’ roll. In 1945, at age 18, he co-founded J&M Music Shop and Amusement Service with partner Joseph Mancuso. Matassa converted the back room at 838 North Rampart Street into J&M Recording Studio in 1946, and over the next decade, J&M became the epicenter of New Orleans music, producing national hits. In 1956, Matassa relocated to a larger space at 525 Governor Nicholls Street, renaming it Cosimo Recording Studio. Matassa recorded a diverse roster of artists, including Professor Longhair, Fats Domino, Little Richard, Roy Brown, Guitar Slim, Aaron Neville, Ray Charles, and more. His legacy was honored with inductions into the Louisiana Music Hall of Fame (2007) and Rock & Roll Hall of Fame (2012).

Cosimo Birthday Playlist

Speakers

Deacon John headshot

“Deacon” John Moore

Musician
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Matt Sakakeeny headshot

Matt Sakakeeny

Music scholar
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An older man with short white hair and a beard is smiling while seated in front of a microphone. He is wearing a dark long-sleeve shirt. In the background, there are framed pictures leaning against a wall.

Nick Spitzer

Folklorist 
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