Sea Glass is a rubato ballad composed by Michael Brecker, written for and first recorded on his self-titled debut album in 1987. The composition opens with a contemplative, spacious character that showcases Brecker's gifts as both a melodist and a harmonist. The piece is built around an implied three-four pulse in the piano accompaniment while the saxophone melody floats freely above in rubato, creating a tension between structure and spontaneity that gives the music an open, expansive quality. This interplay between the suggested time feel and the freely flowing melodic line is central to the composition's identity. Harmonically, Sea Glass reflects Brecker's deep harmonic knowledge, with the melody unfolding in a gentle, introspective manner that allows room for subtle reharmonization and interpretive flexibility. The composition prioritizes space and atmosphere over dense harmonic movement, functioning as a vehicle for expressive, emotionally direct saxophone playing. As the opening track on Brecker's debut as a leader, Sea Glass set an important tone for his career as a composer and bandleader, signaling his commitment to ballad playing as a means of accessing emotional and spiritual dimensions of music-making. The piece remains closely associated with Brecker's own interpretation and has not become a widely covered standard in the jazz repertoire.