Greenslade-"Greenslade" (1973)

Once the first Colosseum project was dissolved, two of its members, keyboardist Dave Greenslade and bassist Tony Reeves founded Greenslade, for which they recruited former King Crimson drummer Andrew McCulloch and keyboardist Dave Lawson, which turned this band into an unusual case as it had two keyboardists and no guitarist (at least in England, since the Italian group Banco already had a similar formation).
The debut album "Greenslade" was released in 1973 and is considered a classic of progressive rock, both for the music and for the cover art by the legendary Roger Dean.
The use of two keyboardists allowed them to create a texture and a very dense sound atmosphere rich in details, which at no time saturated the sound, partly reminiscent of the Yes for their constant changes of time signature but without the complexity of the latter.