Katy Perry (left) and Miley Cyrus at the Pre-Grammy Gala in February. Lester Cohen/WireImage hide caption

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Vocalist Brianna Thomas and Michael Mwenso sang a duet of "Don't Blame Me" for the web series Capsulocity. Courtesy of Capsulocity hide caption

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Gabe Baltazar (fourth from left) at New York City's Birdland Club in 1962, with members of Stan Kenton's band and the Count Basie Orchestra. The photo, from Baltazar's collection, is signed by Kenton (fourth from from right) and trumpeter Harry "Sweets" Edison (second from right). Courtesy of Gabe Baltazar hide caption

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Law professor Lawrence Lessig, shown here in 2009, is suing an Australian record label for threatening to sue him over an alleged YouTube copyright violation. Neilson Barnard/Getty Images hide caption

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The Whisky a Go Go club on the storied Sunset Strip, once the hub L.A.'s music scene, acknowledged the May 2013 death of The Doors' keyboardist on its marquee: "Rest In Peace Ray Manzarek, Thanks for the Memories." Jason Kempin/Getty Images hide caption

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The Sacred Steel tradition is an integral part of worship. From the House of God Keith Dominion Church, Aubrey Ghent (pictured) helped revive the style in 1990s. Brad Gregory/Courtesy of the artist hide caption

itoggle caption Brad Gregory/Courtesy of the artist

Melissa Aldana performs at the 2013 Thelonious Monk International Jazz Saxophone Competition at The John F. Kennedy Center for Performing Arts in Washington, D.C. Paul Morigi/Getty Images for the Thelonious Monk Institute of Jazz hide caption

itoggle caption Paul Morigi/Getty Images for the Thelonious Monk Institute of Jazz

New York musician Dan Kaufman (third from right) traveled to Rome to learn more about the city's Jewish community and the Italian resistance during WWII. The result is a new album by his band Barbez, based in part on the lost melodies of Roman Jewish music. Courtesy of the artist hide caption

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Members of the disco group Lipps, Inc., including Steven Greenberg (far left), pose for a portrait in 1978. Greenberg, who wrote the group's hit "Funkytown," is seeking to reclaim the song's full copyright from Universal Music Group. Michael Ochs Archives /Getty Images hide caption

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Cookie Marenco records musicians on a small remote recording console live at the California Audio Show in August. She'll demonstrate the quality of DSD to the audience by playing back her recording. How close will it sound to the live performance? Very close, according to people present. Cindy Carpien hide caption

itoggle caption Cindy Carpien