Kyriale
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The Kyriale is a publication containing the Gregorian chants for the Ordinary of the Mass. There are eighteen masses in it and six Credos, and also some ad lib chants for the Kyrie and the Gloria. The Kyriale is published by the monks of Solesmes Abbey.
Some of the more notable inclusions are Mass VIII which is the Missa de angelis and Mass XI which is the Missa orbis factor.