One Notion Under a Groove: Jazz artists have used concept albums to pay tribute, spin stories and raise hell In Michael Jarrett’s book Pressed for All Time, excerpted in this article, pioneering producer and invaluable commentator George Avakian explains… This content is available to subscribers only. To continue reading, please login or start a FREE 14-Day Digital Subscription. Bundle your subscription with our award-winning print magazine here. Join Our Email Newsletter Join thousands of other jazz enthusiasts and get new music, artists, albums, events and more delivered to your inbox. Sign Up Now!