Music in the movie

When Brian Aherne was relating the story of why he hated Jeremy Wayne to his ward, Jeanette MacDonald, the tale began at a party the night prior to the wedding. Guests were dancing to a waltz. One movement in that waltz contained the music that was later adapted to the Irish ballad "Rose Of Tralee". I have discovered that the music was originally published in England in 1845 and was adapted to "Rose Of Tralee' by Chas W. Glover.

Does anyone know the title of that waltz?