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"Prog Rock" or progressive rock is a morphing of classical, rock, and improvisational sound. Spun out of the late 1960s and '70s in the United Kingdom, the music is made up of complex compositions and weighty lyrics, improvisation, and classic melodies.
That blending of the old with the new built a loyal following of die hard prog rock fans since the 1970s.
David Weigel is one of those fans. He's a national reporter for The Washington Post, but for the past several years he's been moonlighting and expanding his encyclopedic knowledge of prog rock. The result is his new book, released this week, "The Show that Never Ends: the Rise and Fall of Progressive Rock." He joins The Takeaway to discuss his new work, and the evolving history of prog rock.