The Underground Set is a cult Italian psychedelic and early progressive instrumental album originally released in 1970 and produced by Gianfranco Reverberi. Performed by members of Nuova Idea under a pseudonym, the record blends Hammond driven psych rock with film score influences, fuzz guitar and distinctive rhythmic motifs. Long sought after by collectors of Italian rock and European soundtrack adjacent recordings, the album stands as one of the strongest examples of the era's "psychploitation'' sound. This re-issue edition preserves the original material while presenting it to a new audience discovering early Italian progressive music.