The 1969 album Then Play On, Peter Green's last with Fleetwood Mac, signaled a spiritual quest already in progress. Jan Persson/Redferns hide caption

Tom Cole
Jim Hall performs with his trio and fellow guitarist Julian Lage at the 2013 Newport Jazz Festival. Adam Kissick for NPR hide caption
King Oliver's Creole Jazz Band in Chicago in 1923: Louis Armstrong is kneeling, from left to right behind him are Honore Dutrey, Baby Dodds, King Oliver, Lil Hardin, Bill Johnson and Johnny Dodds. Frank Driggs Collection/Getty Images hide caption
The cover image of The Complete Roost Johnny Smith Small Group Sessions, a 2002 box set of work from across the jazz guitarist's career. Album cover hide caption
The crowd at Richie Havens' Woodstock-opening set on Aug. 15, 1969. Paul DeMaria/New York Daily News via Getty Images hide caption
A 16-inch lacquer disc, a format used in the 1930s, from the collection of the Library of Congress. Most of the lacquer, the part of the disc where the sound was etched, has been lost to decay. Abby Brack/Library of Congress hide caption
Janet Feder built a career on unusual instrumental guitar playing. Her new album, Songs With Words, will feature her singing for the first time. Courtesy of the artist hide caption
Hank Jones (pictured) and Charlie Haden's album, Come Sunday, comes out Jan. 10. Cheung Ching Ming hide caption
Bob Dorough circa 1960. Jon Sievert/Michael Ochs Archives/Getty Images hide caption
John Zorn's newest album is titled A Dreamer's Christmas. Courtesy of the artist hide caption
Adele's name was attached to nine nominations, but that includes three for her producers on individual songs and one for the video for "Rolling in the Deep." Lauren Dukoff/Sony Music hide caption