Recorded in 1978, the instrumental El Poeta Del Ruido by Decibel could be labeled a prog album but don't expect it to sound anything like Yes! This is more in the spirit of Art Zoyd, Univers Zero, Henry Cow, Faust, and Gong, which is to say, quite experimental, a bit dark, complex, and generally highly-structured (though it's also sometimes deliberately disjointed). Classical instruments form an important part of the group's sound, but it is augmented by interesting sound effects and there are extended moments of space-y electronic exploration. Masterfully executed, this album is a compelling listen from beginning to end. Tracks include "El Poeta del Ruido," "Orgón Patafísico," "El Fin de los Dodos," "Manatí," and "El Titosco" and more.