Os justi (Bruckner)

Os Justi
Motet by Anton Bruckner
Interior of St. Florian Abbey, where the dedicatee was choir master
KeyF Lydian mode
CatalogueWAB 30
FormGradual
LanguageLatin
Composed18 July 1879 (1879-07-18): Vienna
DedicationIgnaz Traumihler
Published1886 (1886): Vienna
VocalSATB choir
InstrumentalOrgan (verse Inveni David)

Os justi ('The mouth of the righteous'), WAB 30, is a sacred motet composed by Anton Bruckner in 1879. Os Justi is a Gregorian chant used as gradual of the Commune Doctorum,[1] and as introit I[2] and gradual II[3] of the Commune Confessoris non Pontificis.