This is a translation from an American Revels production , arranged by a George Emlen. I can't vouch for the accuracy. The Gaelic tracks with the chorus and one verse as Aine transcribed it in the earlier post.

chorus: Thou art the music of my heart Harp of Joy, cruit mo chroi Moon of guidance by night Strength and light thou art to me

In the morning, when I go To the bright and shining sea In the calling of the sea Thy soft calling to me

MarcB