3. Singing or saying the Gloria
Just after the beginnig of the Sunday Mass, it is common to sing or recite the Gloria (“Glory to God in the highest”).
But not on the Sundays of Lent. Thus;
The General Instruction states:
53. The Gloria in excelsis (Glory to God in the highest) . . . is sung or said on Sundays outside Advent and Lent, and also on Solemnities and Feasts, and at particular celebrations of a more solemn character.
