In progressive rock circles, Magna Carta are a bit like the Little Engine That Could -- from relatively modest beginnings in 1969, they've endured across 36 years and counting, even as their louder, more heavily amplified rivals from the same era have long since been consigned to history. Acts such as King Crimson and Emerson, Lake & Palmer may be better (and much more widely) known, but Magna Carta have stayed together, making music decades longer. The group was founded in 1969 by Chris Simpson (who also sang) and Lyell Tranter on acoustic Gibson guitars and Glen Stuart singing harmony. Formed in London, they made their debut at the Coalhole Folk Club in Cambridge, and coming off of the enthusiastic response to the ten songs they did that night, Magna Carta were rolling. They were not, strictly speaking, a pure folk group even then, but utilized folk and traditional elements very heavily in their songwriting and sound, in a manner similar to that adopted by John David Gladwin and Terry Wincott of the Amazing Blondel at approximately the same time. They were signed to Mercury Records' British division and debuted with a self-titled LP. They were then shifted over to the related Vertigo label -- which was more specifically devoted to progressive rock acts -- for their second album, Seasons. By that time, their sound had solidified around Simpson's singing, songwriting, and steel-strung Martin D18; Tranter's arrangements and nylon-strung Gibson; and Stuart's vocal arrangements and his five-octave harmony range. Seasons, produced by Gus Dudgeon, featured as its centerpiece the side-long title work, and also a much larger contingent of musicians, among them Tony Visconti on bass, Rick Wakeman on keyboards, Tim Renwick on flute, and Davey Johnstone on guitar; it was also the...