Llewellyn is pretty good with enigmatic music. Doesn't do it often, being more enamoured of the chipper and seriously French-influenced NeoCeltic, but is very good. I don't think HR has any Llewellyn, but iTunes has a nice selection to sample. (No, that's not an iTunes plug, just my experience.) "Rhiannon" has to be a favorite of mine from Llewellyn.
There's also Mychael Danna, of "Diedre of the Sorrows".
Enaid and Einalem can sometimes sound like Enya.
Ah, Life. Daily, it insists on being itself-- an adder in the blooming heather which may or may not strike at one's heel. Or perhaps a better analogy might be a flowering gorse-bush in a slick, mud-lined depression.