Miles Davis and Bill Evans collaborated on "Blue in Green" and "Flamenco Sketches" for the landmark 1959 album Kind of Blue, though authorship has been contested. Evans claimed he wrote "Blue in Green" entirely, while "Flamenco Sketches" was developed together before the session, inspired by Evans's "Peace Piece." Despite ongoing debate over credit, both compositions remain cornerstones of modal jazz and showcase the deep musical understanding between pianist and trumpeter.