Byablue was recorded on June 23, 1976 at Generation Sound Studios in New York. It is the third album by Keith Jarrett's American Quartet, featuring Dewey Redman, Charlie Haden, and Paul Motian.
The title Byablue comes from a composition by Paul Motian, and the album includes pieces by all quartet members. The music blends free jazz, improvisation, and lyrical melodies, characteristic of the group at that time.
Produced by Manfred Eicher, Byablue was released in 1976 by ECM. The album reflects the unique chemistry of the quartet, though Jarrett would dissolve this lineup shortly after to focus on solo projects.