Le Orme is one of the longest lasting and best known Italian progressive rock bands. The band was formed in Venice in 1966 by Aldo Tagliapietra (voice, guitars), Nino Smeraldi (guitars), Claudio Galietti (guitar and bass) and Marino Rebeschini (drums). Their first album, Ad Gloriam, was released in 1968. From their psychedelic and beat roots, they moved into increasingly sophisticated musical structures. Their 1973 album Felona e Sorona is widely regarded as one of the top albums in Italian progressive rock.