The cheers rang loud and long for Joey Alexander after he had played his last delicate piano chord in a recent sold-out set at Dizzy’s Club Coca-Cola in Manhattan.

Beaming at his standing ovation, he stood between his bassist and his drummer, intent on taking a group bow. The scene was sweetly comical: The top of his head barely grazed their chests.

Which only made sense, given that Joey, jazz’s latest media star, is 11 years old.

This was far from his first turn in the spotlight. He became an overnight sensation — not too strong a term — with his guest performance a year ago at a Jazz at Lincoln Center gala, which won him rave reviews. His debut album, “My Favorite Things” (Motéma), is out this week, and he is booked for a series of notable appearances in the coming months, including one at the Newport Jazz Festival in August.

Discovered in Jakarta, Indonesia, about three years ago, Joey moved with his parents to New York last year, with the help of jazz luminaries like the trumpeter Wynton Marsalis, who called him “my hero” on Facebook and with whom he now shares a manager.