From a reader:
I know that the Liber Usualis and the Graduale are the two main places to find the appropriate chants for any given feast day in the Extraordinary form of the Mass, but I was wondering where one is to find the chants for the Novus Ordo and the New Calendar? Is there a special book for this, along the lines of the Liber Usualis? Thanks and God bless during this Lent!
I’m glad you asked.
The entire Mass according to the Novus Ordo can be sung entirely in Latin in Gregorian chant using the proper texts for each and every day.
For the Novus Ordo (Ordinary Form) the useful book (literally “Liber Usualis”) is the Graduale Romanum published by the Benedictine monks at Solesmes in France. This book has all the ordinary and proper chants for Mass for the whole year. It is approved by the Holy See.
You will find even that there are graduals which would be used in place of the responsorial psalms.
A group of signers, schola cantorum, armed with this book can do it all, from soup to nuts for all Masses in the Ordinary Form.
I have been deeply concerned that the use of Latin will be relegated to the Extraordinary Form of the Roman Rite. We need to have the Ordinary Form in Latin as often as possible as well.
For the priest at the altar, there is not only the 3rd edition of the Missale Romanum, which has musical notation for the parts that can be sung, there is another book by the monks at Solesmes called the Ordo Missae in cantu, which provides all the chants the priests needs.
Another useful little book would be the Cantus Selecti which has “selected chants” such as antiphons and other texts for communion time, etc. If you get more ambitious and have a good budget, the monks at solesmes also have a Kyriale, which has the ordinary chants for Mass that the congregation can use to sing all those parts that pertain to them.
For example, there are alternate chants for familiar seasonal texts:
There are also lots of online resources. Check out Chant Cafe, for example. My friend Jeffrey Tucker has good stuff available. There are workshops for people who want to learn to sing Holy Mass in Latin.
But that is a start.