Cosimo Matassa is born in New Orleans.
Cosimo Matassa opens his original J&M Studio at 838-840 Rampart Street in New Orleans, at the back of his J&M Appliance Store and Record Shop.
Fats Domino cuts eight tracks at his first recording session at Cosimo Matassa's J&M Studios. They include "The Fat Man," which reaches #2 on the R&B chart and sells a million copies.
Cosimo Matassa records Dave Bartholomew’s “My Ding-a-Ling” at J&M Studio. Twenty years later, Chuck Berry will have his only Number One single with his rerecording of the song.
Lloyd Price’s “Lawdy Miss Clawdy,” recorded by Cosimo Matassa at J&M Studio, enters the singles charts. It will top the R&B chart for seven weeks.
Little Richard enters Cosimo Matassa's J&M Studios, where he’ll cut “Tutti-Frutti” and other early rock and roll classics with producer Bumps Blackwell and New Orleans’ greatest sidemen.
Cosimo Matassa moves his New Orleans studio to a new location at 523 Governor Nicholls Street. He’ll subsequently add another studio next door.
“Tell It Like It Is,” by Aaron Neville, enters the charts, where it will peak at #1 R&B and #2 pop. It is one of the last national hits recorded by Cosimo Matassa at his New Orleans studio.
Fifty years after Fats Domino’s first session here, the site of Cosimo Matassa’s J&M Studio at 838-840 Rampart Street is declared a historic landmark by the state of Louisiana.
Cosimo Matassa is inducted into the Louisiana Music Hall of Fame at a ceremony in Baton Rouge
The site of Cosimo Matassa’s original J&M Studio in New Orleans is commemorated as a historic Rock and Roll Landmark by the Rock and Roll Hall of Fame and Museum.
Cosimo Matassa is inducted into the Rock and Roll Hall of Fame at the 27th annual induction dinner. Robbie Robertson is his presenter.