Songs in The Key of Life (1976)

Formed at the dawn of the progressive rock era in 1969, Gentle Giant seemed poised for a time in the mid-'70s to break out of its cult-band status, but somehow never made the jump. Somewhat closer in spirit to Yes and King Crimson than to Emerson, Lake & Palmer or the Nice, their unique sound melded hard rock and classical music, with an almost medieval approach to singing…

Uriah Heep's by-the-books progressive heavy metal made the British band one of the most popular hard rock groups of the early '70s. Formed by vocalist David Byron and guitarist Mick Box in the late '60s, the group went through an astonishing number of members over the next two decades – nearly 30 different musicians passed through the band over the years…

American pop/jazz-rock group. One of the biggest-selling bands in U.S. history, hailing from the Windy City (Chicago, Illinois). Formed in 1967 as "The Big Thing", they were one of the first groups to successfully fuse rock with a horn section…

One has to wonder why this box, Joni Mitchell's The Studio Albums 1968-1979, was issued only in the European market. During this period –and some would argue even after – Mitchell had one of most consistent quality runs in pop history. She is one of the most influential songwriters and recording artists of the 20th century…