Viana first played guitar before he with his father Sebastião Viana, former Assistant Heitor Villa -Lobos ', had flute lessons. He studied composition at the Universidade Federal de Minas Gerais and attended courses in piano with Jacques Klein and violin, viola and chamber music at Paulo Bosisio and Max Rostal. At the Reale Accademia Filarmonica di Bologna and the Accademia Chigiana di Siena, he attended film music courses, among others Ennio Morricone of more teachers were Luca Salvadori, Arthur Bosmans, Radamés Gnatalli and Oiliam Lana. He taught comparative musicology at Palacio das Artes in Belo Horizonte.
Viana activity as an instrumentalist was ended by a car accident in 1998, in which his right hand was severely damaged. Then he turned to the interpreter of the computer music. His catalog of works as a composer includes well over 315 titles, including pieces for solo instruments, chamber music, vocal and orchestral works and pieces for jazz ensemble. He also composed the music for about 20 films. His works have been performed internationally and published on CD (including a double album with film scores with the Russian State Symphony Cinema Orchestra under his direction ). Several times he received awards including the first prize in the National Composition Competition in Rio de Janeiro in 1984 and the Funarte Composition Competition in 2001, the price for the Best Soundtrack at the Gramado Film Festival 2001 and the First Prize and the Audience Prize at the Concours de Composition pour Orchestre d ' harmony in Lambersart 2006.