The music of the 4th Preface of Lent can be found in the Missal.
It has been recorded here by Fr Michael Hutson.
The Lord be with you: And also with you.
Lift up your hearts:
We lift them up to the Lord.
Let us give thanks to the Lord our God:
It is right to give him thanks and praise.
Father, all-powerful and ever-living God,
we do well always and everywhere to give you thanks.
Through our observance of Lent
You correct our faults and raise our minds to you,
you help us grow in holiness,
and offer us the reward of everlasting life
though Jesus Christ our Lord.
Through him the angels and all the choirs of heaven
worship in awe before your presence.
May our voices be one with theirs
as they sing with joy the hymn of your glory.