Tammy Heinsohn (left) and Carolyn Wilson sing in the meditation room of Alive Hospice in Nashville. They're part of the Threshold Choir, which sings to the dying. Emily Siner/Nashville Public Radio hide caption

itoggle caption Emily Siner/Nashville Public Radio

Frankie Soto is in charge of the "underground" rock shows at an empty storefront in Stockton's Normandy Village Shopping Center. Brett Myers/Youth Radio hide caption

itoggle caption Brett Myers/Youth Radio

Singer Ke$ha performs during the iHeartRadio Music Festival at the MGM Grand Garden Arena in Las Vegas in September. Ethan Miller/Getty Images hide caption

itoggle caption Ethan Miller/Getty Images

Musician Lou Reed, for decades a rock icon, died Sunday at age 71. In 2006, he took a picture of an ad for his own photo exhibit in Naples. AFP/AFP/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