About A.Dias Baptista Arnaldo Dias Baptista (b. July 6, 1948 in São Paulo) is a Brazilian rock musician and composer.Born from a lyric singer father and a pianist mother, Arnaldo studied classic piano from 1955 to 1959, double bass from 1962 to 1963, and acoustic guitar from 1963 to 1965. In 1966 he formed the influential Os Mutantes band with his brother Sérgio Dias and Rita Lee, where he played bass, keyboards and sang. Os Mutantes played a key role in the Tropicalismo movement. Arnaldo left the band in 1973 due to fights with the other members of the band and the excessive use of LSD. In 1974 he tried to work as a musical producer, with no success. This motivated him to try a solo career, and in the same year, he released the album Lóki, which is considered his best work. Arnaldo recorded two albums with the band Patrulha do Espaço between 1977 and 1978, and later resumed his solo career. In 2006, Os Mutantes reunited without Rita Lee, and Arnaldo plays with his brother Sérgio and the drummer Dinho Leme once more, 33 years after leaving the band. in 2007 Arnaldo left the band again to take care of personal projects. Nowadays, Arnaldo lives with his wife Lucinha Barbosa, in the city of Juiz de Fora, where he spends most of his time painting, singing and writing songs. After the reunion of Os Mutantes, and its great importance in Brazilian rock music, Arnaldo's career seems to have a new perspective.