Recorded in 1970 during the same period of "Overground", UNDERGROUND was recorded into 2 volumes (RT 104 and RT 16), both released in the same year in may and june at Dirmaphon studios, Roma. Together with Overground these records are really fascinating instrumental Free Jazzy/Psych Library, released with the auxiliary of historical Rai session musicians like guitarist Silvano Chimenti and organist Giorgio Carnini. This record collects all Underground' tracks in 1 LP. Established Jazz composer, Sandro Brugnolini written some among the greatest Italian soundtracks and Library music ever.