The Canticle of Mary is the first prayer of the Church, a paradoxical prayer of triumph through humility that leads us to Christ. So why don't we pray it more? http://www.pbgrace.com/why-not-the-magnificat/
The Song Of Moses with Lyrics by Paul Wilbur Rev 15:2 And I saw something like a sea of glass mixed with fire, and those who had been victorious over the beast and his image and the number of his name, standing on the sea of glass, holding harps of God. 3 And they sang the song of Moses, the bond-servant of God, and the song of the Lamb, saying, " Great and marvelous are Your works, O Lord God,..."