 The following year they went on tour around the Southern Cone, and then released their 3rd album "Seremos Amigos", permeating psychedelic rock during the height of that subgenre of rock.The band's next effort after a short break-up, 1969's "Beat N°1", featured the addition to the group of Pappo.His rocking blues style with Litto Nebbia's more classical melodic approach at times made the album uneven, but also created quite dazzling passages of music that can be considered one of the earliest recordings of progressive rock anywhere in the world, previewing the rise of the genre around the world in the 1970s.