NPR celebrates its 50th anniversary remembering other events in 1971. The band T. Rex overhauled their musical style and released Electric Warrior, an album that became the cornerstone of glam rock.

The album name and cover art suggest arena rock swagger. And there’s plenty of it, but “Cosmic Dancer” reveals a troubled Marc Bolan. He danced himself “right out the womb”, then later, “into the tomb ...