Except for a few songs from earlier releases, virtually all the music on “Enjoying the Ride” is previously unreleased, spanning more than 450 tracks and over 60 hours of music. Seventeen of the 20 ...

With the Grateful Dead turning 60 this year, you may be able guess how many CDs are included in a forthcoming epic boxed set of live shows from the band’s heyday. There’s a clue in the 50-disc package ...