Between 2006 and 2010, Jason Hamacher made many trips to Syria to photograph and record ancient chants. Jason Hamacher/Lost Origins Productions hide caption

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Sheldon Harnick (right) with the late Jerry Bock, his long-time musical collaborator. Together they worked on musicals like Fiddler on the Roof and Fiorello! Astrid Stawiarz/Getty Images hide caption

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Frozen is the tale of sisters Anna and Elsa, whose relationship is captured in music by songwriters Robert Lopez and Kristen Anderson-Lopez. Courtesy of Walt Disney Pictures hide caption

itoggle caption Courtesy of Walt Disney Pictures

When hitting a high note, mezzo-soprano Dolora Zajick says, "You have to have support. You have to have resonance. People have to understand what you're saying." David Sauer/Courtesy of the artist hide caption

itoggle caption David Sauer/Courtesy of the artist

Members of The Beatles play in the snow outside Washington, D.C.'s Coliseum where they were scheduled to perform before a sell-out audience in 1964. Central Press/Getty Images hide caption

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In addition to being the first Hispanic to serve on the Supreme Court, Sonia Sotomayor was New York state's first Hispanic federal judge. Kainaz Amaria/NPR hide caption

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In Saving Mr. Banks, Emma Thompson plays Mary Poppins author P.L. Travers, who, Thompson says, hated the whole idea of having her book made into a film. Francois Duhamel/Disney Enterprises hide caption

itoggle caption Francois Duhamel/Disney Enterprises