Petrushka chord
| Component intervals from root | |
|---|---|
| diminished seventh | |
| minor sixth | |
| diminished fifth | |
| minor third | |
| diminished third | |
| root | |
| Forte no. | |
| 6-30 |
The Petrushka chord is a recurring polytonal device featured in Igor Stravinsky's 1911 ballet Petrushka, as well as in later compositions. It consists of two major triads separated by a tritone; when sounded together, the chords clash "horribly with each other", producing a distinctive and dissonant sound.