Alleluias of the Graduale Simplex is a collection of Alleluias for Sundays of the liturgical year in the Ordinary form of the Mass of the Roman Catholic Church.
The Alleluias are settings of those in the 1967 Graduale Simplex in modern notation with organ accompaniment, optional SATB harmony, and fully transcribed verses from the Lectionary for Mass for Sundays and Solemnities.