Another free sampler from Amazon: In A Power Free Interview, by Gentle Giant.
Gentle Giant was a classic British progressive-rock group--from the group's Wikipedia page (http://en.wikipedia.org/wiki/Gentle_Giant):
Gentle Giant was a British progressive rock band active between 1970 and 1980. The band was notable for the particular complexity and sophistication of its musical material and for the diverse musical skills of its members (all of whom, bar the first two drummers, were accomplished multi-instrumentalists).</span post_quote>

Reviews, track-samples and download-link here.

Track-list:  1. Interview          6:17 2. Experience         7:49 3. Playing The Game   6:44 4. Just The Same      5:33