Opa was an american Jazz fusion

Jazz fusion

Jazz fusion is a musical fusion genre that developed from mixing funk and R&B rhythms and the amplification and electronic effects of rock, complex time signatures derived from non-Western music and extended, typically instrumental compositions with a jazz approach to lengthy group improvisations,...

 band formed by uruguayan integrants . Started in 1970s, the band released whose two albums in U.S. :
Goldenwings (Milestone Records

Milestone Records

Milestone Records is a United States based jazz record label, founded in 1966 by Orrin Keepnews and Dick Katz in New York City. The company was incorporated into Fantasy Records in 1972, since then it has been used for reissues as well as for new recordings....

 M-9069, 1976)
and Magic Time (Milestone Records

Milestone Records

Milestone Records is a United States based jazz record label, founded in 1966 by Orrin Keepnews and Dick Katz in New York City. The company was incorporated into Fantasy Records in 1972, since then it has been used for reissues as well as for new recordings....

 M-9078, 1977),
both were produced by Brazilian musician and composer Airto Moreira

Airto Moreira

Airto Moreira is a Brazilian jazz drummer and percussionist. Airto is married to jazz singer Flora Purim, and their daughter Diana Moreira is also a singer. He currently resides in Los Angeles.-Biography:...

.

The band consisted of Hugo Fattoruso, George Fattoruso and Hugo "Ringo" Thielmann, plus guest artists Hermeto Pascoal

Hermeto Pascoal

Hermeto Pascoal is a Brazilian composer and multi-instrumentalist. He was born in Lagoa da Canoa, Alagoas, Brazil. Pascoal is a greatly beloved musical figure in the history of Brazilian music, known for his abilities at orchestration and improvisation, as well as being a record producer and...

, David Amaro, Barry Finnerty

Barry Finnerty

Michael Barry Finnerty is an American jazz guitarist, keyboardist, and bassist, best known for his work as a session musician for artists like Miles Davis and the Crusaders...

, Flora Purim

Flora Purim

Flora Purim is a Brazilian jazz singer known primarily for her work in the jazz fusion style. She became prominent for her part in Chick Corea's landmark album Return to Forever...

, Ruben Rada

Rubén Rada

Rubén Rada is an Afro-Uruguayan percussionist, composer and singer. He is closely associated with Candombe, an Afro–Uruguayan rhythmic style music, which is based on the sound of three types of drums: ´chico´, ‘repique’ and ‘piano’...

, Gary Gazaway, Jose Pedro Beledo, etc.
Opa had played on previous albums by Airto MoreiraAllmusic, like Fingers (CTI Records

CTI Records

CTI Records was a jazz record label founded in 1967 by producer/A&R manager Creed Taylor. Initially, CTI was a subsidiary of A&M Records, but the label went independent in 1970...

 CTL 18 ), album released in 1973, and Deodato

Eumir Deodato

Eumir Deodato is a Brazilian pianist, composer, record producer and arranger, primarily based in the jazz realm but who historically has been known for eclectic melding of big band and combo jazz with varied elements of rock/pop, R&B/funk, Brazilian/Latin, and symphonic or orchestral music.Mainly,...

/Airto in concert (CTI Records

CTI Records

CTI Records was a jazz record label founded in 1967 by producer/A&R manager Creed Taylor. Initially, CTI was a subsidiary of A&M Records, but the label went independent in 1970...

 CTI 6041) album released in 1974.

Discography

• Back home (1975)
• Goldenwings ( Milestone Records
  Milestone Records
  Milestone Records is a United States based jazz record label, founded in 1966 by Orrin Keepnews and Dick Katz in New York City. The company was incorporated into Fantasy Records in 1972, since then it has been used for reissues as well as for new recordings....
  
   M-9069, 1976)
• Magic Time ( Milestone Records
  Milestone Records
  Milestone Records is a United States based jazz record label, founded in 1966 by Orrin Keepnews and Dick Katz in New York City. The company was incorporated into Fantasy Records in 1972, since then it has been used for reissues as well as for new recordings....
  
  M-9078, 1977)
• A Los Shakers Otroshakers (Sazam Records 14587-3, 1981)
• Opa en vivo (Orfeo label 90916-4, 1988)
• Opa en vivo 87' & rarities (2001)