For organ. Six pièces grégoriennes.
From the preface:
These organ pieces may also be performed together with Six Gregorian songs for mixed choir a cappella, opus 210.
The title L¿Orgue mystique is taken from the French composer Charles Tournemire (1870- 1939) and his extensive cycle of solo organ pieces composed for use in the Roman Catholic liturgy. It is subtitled ¿51 Offices de L¿année liturgique inspirés du chant grégorien et librement paraphrasés¿ (51 Offices of the liturgical year inspired by Gregorian chant and freely paraphrased¿).
Duration 27 - 28 minutes