I'm so pleased! I managed to find my old hymn book with the music in that I used when playing the organ at Church! There are loads of Advent hymns in there to inspire me!
These words are from a beautiful hymn called Lord Emmanuel, Come, which I used to play at Church. The Refrain I have saved for another day and another piece as the words are so beautiful! You can have a listen here if you don't know it! https://www.youtube.com/watch?v=gYmcQHjpgvg (Be sure to turn up the volume to appreciate the music as well as the singing and words!)