Tristan chord
![](/Images/godic/202502/17/TristanChord.svg0532.png")
![Beethoven's Sonata Op. 31, No. 3, with notes of Tristan chord](/Images/godic/202502/17/Tristan_chord_in_Beethoven_Sonata_Op._31,_No._3.svg0532.png")
![Tristan chord as dominant with appoggiaturas](/Images/godic/202502/17/Tristan_chord_as_dominant_with_appoggiaturas_Chailley0532.PNG")
![Tristan chord analyzed as a French sixth with appoggiatura and dominant seventh with passing tone in A minor (Benward and Saker 2008, p. 233)](/Images/godic/202502/17/Tristan_chord_as_Fr6_and_V70532.png")
The Tristan chord is a chord made up of the notes F, B, D♯, and G♯. More generally, it can be any chord that consists of these same intervals: augmented fourth, augmented sixth, and augmented ninth above a bass note. It is so named as it is heard in the opening phrase of Richard Wagner's opera Tristan und Isolde as part of the leitmotif relating to Tristan.