Brazilian drummer, singer, composer and improviser Mariá Portugal is the curator for Music Unlimited 40.

​Ravi Coltrane on stage during the Detroit Jazz Festival’s John Coltrane Centennial Celebration.

Alto saxophonist Alden Hellmuth, tenor saxophonist Sergio Tabanico, bassist Felix Moseholm and drummer Eliza Salem perform at Close Up in New York during a D’Addario “After Dark” concert on Oct. 22.

The Bay Area Giants of Jazz photo, which DownBeat published in ​its January 2000 issue, features vocalist Margie Baker wearing a yellow beret in the third row, right, from the bottom row.

The members of Duchess, from left, Melissa Stylianou, Amy Cervini and Hilary Gardner.

Competition winner Malou Oheix (center) with Herbie Hancock and Fondation Louis Vuitton’s Jean-Paul Claverie.

​Jason Moran plays Duke Ellington repertoire at the Church of Peace in Ludwigshafen.

“This was my chance to take everything that I had absorbed in Chicago and try to bring some more complexity,” Emma Dayhuff says of her new album, Mountains.

Ravi Coltrane (right) makes a point during a live Blindfold Test at the Umbria Jazz Festival while pianist Greg Burk (far left), journalist Ashley Kahn and trumpeter Terence Blanchard listen.

For trumpeter Marcus Belgrave (1936–2015), shown here with his wife, Joan, teaching meant more than developing instrumental technique. It meant helping musicians understand the history they were inheriting and the immense responsibility that came with it.