Festivals are not usually displaced. Festivals falling on a Sunday may be transferred to the Monday or another suitable weekday. Festivals are not celebrated on a Sunday if they fall in Advent, Lent or Eastertide.
Lesser Festivals are celebrated at the level appropriate to the particular church. The collect, readings and post-communion prayer may supersede the weekly collect, the daily eucharistic lectionary and the weekly post-communion prayer.
When a Lesser Festival falls on a Principal Feast or Holy Day, or on a Festival, its celebration is normally omitted that year unless, for sufficient reason, it is transferred to the nearest available day.
The Minister may be selective as to which Lesser Festivals are celebrated, and may choose to observe some as 'commemorations'.Commemorations are usually made by a mention in prayers of intercession and thanksgiving. The short hagiography provided may be used at the any service at any appropriate point.
A Commemoration may be observed as a Lesser Festival where the day has a special significance. However, care needs to be taken so as not to lose the spirit of the season, especially of Advent and Lent, by too many celebrations that detract from its character.
Festivals, Lesser Festivals and Commemorations may be celebrated on any weekday close to the actual date, should pastoral reasons so require it.
In the Calendar, Principal Feasts and Principal Holy Days are printed in bold red upper case, Festivals are printed in bold red, Lesser Festivals are printed in bold and Commemorations are printed in ordinary roman typeface.
Three readings and a Psalm have been chosen for each sanctorale Principal Feast, Festival and Lesser Festival. Two readings are normally the requirement for Lesser Festivals, but a three-readings provision is made for those places where they are celebrated locally as Festivals, such as on a feast of title or of patronage.
As three Scripture readings are provided, there has been no attempt to give an Old Testament alternative where there is a reading from the Apocrypha.
The order of readings is: Old Testament, Psalm, New Testament, Gospel; when only two readings are used, the Psalm, if used, should be said between the two readings.
Where there is a reading from the Book of the Acts as well as an Old Testament reading and an Epistle, the Acts reading may replace the Old Testament reading or the Epistle; the Acts reading is particularly appropriate on feasts of the Apostles, when provided, and should always be one of the readings if only two are being used.
The Canticle which joins the Old Testament reading to the New Testament Reading almost always is from the Book of the Psalms, often called the prayer book of Jesus. St Augustine said that to sing is to pray twice, and this has to be true with the Psalms. However, their meaning and nuance can be just as easily expressed by a good reader, and the important thing is to hear and understand why the particular Psalm has been chosen for the particular celebration.
The Response itself almost always can be said or sung either as one line -- by omitting the words in square  brackets -- or as two lines. This is to facilitate particular musical or spoken settings; there is no right or wrong option at this point. If other words are already set as a Response, those arranging the worship should feel free to use them at will.