Powell brought in Luiz Marinho on bass and a fourth member of the "trio": Claudette Soares on vocals.

Powell, Lincoln, and their young musician friends took part in after-hours jam sessions, gaining notice in the growing Brazilian jazz scene.

[4] Powell achieved wider fame in 1959 by convincing Billy Blanco, an established singer and songwriter, to put lyrics to one of Baden's compositions.

It has been covered by many artists, including Stan Getz and Charlie Byrd in their seminal LP Jazz Samba.

In 1962, Powell met the poet-diplomat Vinicius de Moraes and began a collaboration that yielded classics of 1960s Brazilian music.

Although bossa nova was the prevailing sound at the time, Baden and Vinicius wanted to combine samba with Afro-Brazilian forms such as candomblé, umbanda, and capoeira.

He was the house guitarist for Elenco, and of the singer Elis Regina's TV show O Fino da Bossa.

In 1968, Powell joined with poet Paulo César Pinheiro and produced another series of Afro-Brazilian-inspired music, released in 1970 as Os Cantores da Lapinha.

He fell terminally ill in 2000 and died of general infection triggered by a bacterial pneumonia on 26 September 2000, in Rio de Janeiro.

He covered Thelonious Monk's "Round Midnight" on two recordings, and Jerome Kern's "All the Things You Are" on three occasions (including his first solo album).

Students of his style should note this preference for chord voicings that feature extensions on the open strings as a way of punctuating passages.

Other idioms to watch for are the endless variations in rhythm played by the right hand, always within the proper 24 samba meter, as well as his tendency to put his "signature" in a fast descending scale with a (slower) ascending arpeggio in the relative key.