Marcus Gilmore (left) and Roy Haynes perform together in Washington, D.C., in 2009. Haynes' daughter is Gilmore's mother. Theo Wargo/Getty Images hide caption

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Jazz clarinetist Anat Cohen has a new album out called Claroscuro. Jimmy Katz/Anzic Records hide caption

itoggle caption Jimmy Katz/Anzic Records

Singer Angelique Kidjo of Benin performs during the opening concert for the soccer World Cup at Orlando stadium in Soweto, South Africa, June 10, 2010. Hassan Ammar/AP hide caption

itoggle caption Hassan Ammar/AP

Stride piano pioneer James P. Johnson had dreams of becoming a successful symphonic composer. William Gottlieb hide caption

itoggle caption William Gottlieb

Lisa Loeb poses for the cameras on arrival for a Special Screening of DreamWork's Pictures' Fright Night on Aug. 17, 2011, in Hollywood, Calif. Frederic J. Brown/AFP/Getty Images hide caption

itoggle caption Frederic J. Brown/AFP/Getty Images

Thom Yorke of Atoms For Peace. Not pictured from the band: Nigel Godrich, Flea, Mauro Refosco and Joey Waronker. Eliot Lee Hazel hide caption

itoggle caption Eliot Lee Hazel

Fanny and Felix Mendelssohn relied on each other to shape their very different musical careers. Bettmann/Corbis hide caption

itoggle caption Bettmann/Corbis