Complex sentence: In 1966, he played in the Sambrasa Trio, with Airto Moreira and Humberto Clayber; they released only one album, "Em Som Maior".
Split into simpler sentences: In 1966, he played in the Sambrasa Trio, with Airto Moreira and Humberto Clayber. This group released only one album, "Em Som Maior".