"There was this sensation of going on a journey together, without seat belts," says Rhiannon of her band's first totally improvised performance. Her newest album is called Spontaneous. Courtesy of the artist hide caption

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The Uptown Vocal Jazz Quartet, left to right: Ginny Carr, alto; Robert McBride, tenor; Holly Shockey, soprano; and Andre Enceneat, bass. The group's new album, Hustlin' for a Gig, came out in May. Michael G. Stewart hide caption

itoggle caption Michael G. Stewart

Saxophonist Ravi Coltrane is the son of jazz icons John and Alice Coltrane. His new album Spirit Fiction was released June 19. Deborah Feingold/Courtesy of the artist hide caption

itoggle caption Deborah Feingold/Courtesy of the artist

Linda Oh's latest album, Initial Here, was released May 22. Vincent Soyez/Courtesy of the artist hide caption

itoggle caption Vincent Soyez/Courtesy of the artist

Trumpeter John Thornton plays at the corner of 7th Street and Constitution Avenue in Washington, D.C., just a few blocks from NPR's headquarters. Devon Kodzis/NPR hide caption

itoggle caption Devon Kodzis/NPR

Arturo Sandoval and Dizzy Gillespie on tour in Europe in 1991. Sandoval's new album, Dear Diz (Every Day I Think of You), is a tribute to his friend and mentor. Courtesy of the artist hide caption

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Jazz pianist Jason Moran was named a MacArthur Fellow in 2010. Clay Patrick McBride/ hide caption

itoggle caption Clay Patrick McBride/

Han Bennink drums on whatever surface he can find — and plays with tone and rhythm while manipulating the drum with parts of his own body. Michael Jackson hide caption

itoggle caption Michael Jackson

The new compilation Echoes of Indiana Avenue collects rare early recordings by jazz guitarist Wes Montgomery. Duncan Schiedt hide caption

itoggle caption Duncan Schiedt