Questar is an instrumental jazz piece by Keith Jarrett performed by his European Quartet. It opens the 1978 ECM album My Song, released in June 1978 (recorded in 1977 at Talent Studios in Oslo). The track features Keith Jarrett on piano, Jan Garbarek on soprano and tenor sax, Palle Danielsson on bass, and Jon Christensen on drums, with Manfred Eicher as producer. Questar showcases a melodic, lyric driven interplay between piano and sax, a hallmark of Jarrett’s ECM era.