4. Singing or saying the Alleluia before the Gospel
During most times of the year we sing or say the Alleluia before the Gospel reading but not in Lent too.
However, the General Instruction states:
62. a) The Alleluia is sung in every time of year other than Lent. The verses are taken from the Lectionary or the Graduale.
b) During Lent, instead of the Alleluia, the verse before the Gospel as given in the Lectionary is sung. It is also possible to sing another Psalm or Tract, as found in the Graduale.