The hymns represent a valuable inheritance, which dates back to the apostolic age unchanged. Thus are regarded as part of the Church

Annual3 albums
Commemoration of the Heavenly and Saints1 albums
Fasts4 albums
Gospel Readings1 albums
Holy Week11 albums
Instructional Liturgies5 albums
Major Feasts of the Lord7 albums
Minor Feasts of the Lord3 albums
Other Occasions7 albums