Volume 2 publishes 32 plates from the manuscripts used in the edition. It then provides an overview of the entire Gloria repertory, listing all the manuscripts by place of provenance (coinciding with the order of collation) and detailing information on the place of insertion of each verse in the tropes and prosulas, including liturgical rubrics and melodies. French musicologist Marie Noël Colette contributes to this volume with musical transcriptions and annotations of a selection of troped Gloria chants. Indices and bibliography conclude the volume.