Hi Helio,
I just find a website, planet harp, that have much of Holy music from RHC on special for half price. Elegy, Nocturne, Impromptu. And Parish Alvars La Danse des fees (I like this one).
http://planetharp.com/store/clohrpmu.html
It is on the music close out page and I hope it works as the link. I do not know if they are part of the same company or not, and you pay by something called pay pal.
Amy