Pari intervallo is a composition by Estonian composer Arvo Pärt, written in 1976 in four parts without fixed instrumentation.
The composer later made versions for organ (1980), four recorders (1980),[1] clarinet, trombone and string orchestra (1995), saxophone quartet (2002), two pianos or piano duet (2008), and eight or four cellos (2010).
[2] Pari intervallo was one of seven works premiered in 1976 under the title tintinnabuli, the name of compositional style created by the composer.
It is in E-flat minor and consists of four voices; first and third playing only notes from E-flat minor chord and second and fourth (pedal bass) playing melody in parallel thirds (2 octaves apart).
Notated organ stops in the score: