His father, who was his first teacher, prompted him to begin playing at nine. He continued to study as a self-taught musician until he moved to Belém, in Pará, Brazil, studying musical theory with Professor Drago. In 1963, he moved again, this time to Rio, where he studied with Othon Salieri. In 1964, he moved to Portugal, where he graduated from the Lisbon National Music Conservatory. Tapajós was already an active performing artist, playing concerts in Portugal and Spain. In Madrid, he studied with guitar master Emilio Pujol, having graduated from the Hispanic Culture Institute. Since 1968, his recordings have been released in Brazil, Argentina, Japan, and in most European countries. Returning to Belém, he spent some time there before returning to Rio, in search of performing opportunities and to research Brazilian popular music. The first opportunity to perform came with a rendition of Villa-Lobos' Concerto for Guitar and Orchestra with National Symphonic Orchestra at the Teatro Municipal, Rio's most distinguished classical music concert house. The reviews were very favorable, and he began to tour Brazil and the U.S., giving concerts. Tapajós developed an interest in writing Brazilian popular music. His compositions, always evidencing an original character while avoiding easy commercial references, are profoundly rooted in Brazilian tradition. In 1972, Brasil: El Arte de la Guitarra was released by Discmedia/Trova-Alfa, with themes from classical and popular Brazilian composers, and his own compositions, along with a Weiss piece, "Allemande." After 1973, he toured Europe with great success. That same year, he performed at the Folklore and Bossa Nova of Brazil Festival, accompanying Maria Betânia and Paulinho da Viola, and he recorded Bienvenido Tapajós for MPS. He then began an intense touring schedule through Germany, Austria, Denmark, Norway, Italy, Holland, Belgium, and other countries. He also makes a point in presenting to his European audiences other great Brazilian musicians, such as Maurício Einhorn, Zimbo Trio, Joel do Bandolim, Djalma Correa, Sivuca, and others.
In 1981, Sebastião Tapajós recorded with Zimbo Trio the album Sincopando, for Stockfisch. In 1982, his LP Guitarra Criolla was awarded, in Germany, as the Album of the Year. Two years later, he released Xingu, with Pedro Sorongo Santos and Djalma Correa, through Tropical Music. His LP Terra was also awarded as Best Foreign Album in Germany. In 1988, Sebastião Tapajós recorded Luá, Joá, with Maurício Einhorn, for Caju Music. In Brazil, he was awarded by the Academia Brasileira de Letras as the best Brazilian musician of 1992. In 1993, he recorded a CD entirely dedicated to Villa-Lobos' music, Villa-Lobos, also for L'Art. In 1994, he recorded an album with pieces mostly by Hispanic classical composers. But, in 1995, his Visões do Nordeste (L'Art) brought his own compositions with Northeast Brazilian rhythms; with only one song not written by him, the Northeastern folklore song, "Mulher Rendeira." With Brazilian pianist Gilson Peranzzetta, Tapajós recorded, in 1996, the album Affinities, mostly with compositions by the two. Rejecting being labeled as a "jazz" player, Sebastião Tapajós was simply a Brazilian music player; he died on October 2, 2021 at the age of 78. ~ Alvaro Neder, Rovi