TH doesn't mention the specific tunes for the dances in 'Tess', but he mentions many tunes in other works ('Under the Greenwood Tree' springs to mind but it's been a few years since I read it). He does give the name of a psalm tune 'Langdon' from the days when we used to sing psalms in church to chants, rather than as contemporary songs. I feel the Church in general lost a great deal of its dignity when they decided to drop psalm chants.

LTS