In The Decibel Diaries, Carter Alan, longtime DJ and music director at WZLX in Boston, chronicles a lifetime in rock with a tour through fifty concerts such as Crosby, Stills, Nash & Young playing in the rain when Richard Nixon resigned to Talking Heads to the bluegrass angel Alison Krauss and the adaptable veteran Robert Plant forging a plangent, plaintive postmodern synergy. Alan shows us what it was like to be there and reveals how these events fit into the arc of the artist’s career, the artist’s place in music, and the music’s place in the wider world. Taken together, The Decibel Diaries is a visceral and visionary portrait of nearly fifty years of rock ’n’ roll.