Shortly thereafter, feeling homesick, Valle returned to Brazil and entered a new creative phase. "Viola Enluarada" (1968) was more mature and introspective, far removed from the frothy feel of "Samba '68". The title track was a duet with Milton Nascimento and became one of Valle's signature compositions in Brazil. It also betrayed a political consciousness largely absent from Valle's previous work – he would become more overtly political in the years to come. The album as a whole pointed to a broader range of musical influences (particularly the Northeastern Brazilian styles he had enjoyed listening to since his childhood days) that moved him out of the "strictly 'bossa nova artists' club."