This weekend, we learned that the jazz businessman John Levy died on Friday. His wife, Devra Hall Levy, announced the news on Saturday in a press release available on John Levy’s website, Lushlife. He was nearly 100 years old.

Levy was once a musician of some renown — he played bass with Billie Holiday, Stuff Smith, George Shearing and many others — but he’s primarily remembered for his advocacy. He was named an NEA Jazz Master in 2006 for representing dozens of musicians as a manager, and also produced concerts and recordings.

According to Devra Hall Levy’s statement, John Levy’s clients included “Cannonball Adderley, Betty Carter, Randy Crawford, Roberta Flack, Herbie Hancock, Shirley Horn, Freddie Hubbard, Ahmad Jamal, Abbey Lincoln, Ramsey Lewis, Herbie Mann, Les McCann, Wes Montgomery, George Shearing, Dakota Staton, Stanley Turrentine, Joe Williams, and Nancy Wilson, who remains a John Levy Enterprises client to this day.”

Click here to hear a remembrance of Levy by NPR’s Sami Yenigun.