The most haunting music you ever heard?

''Reunited'' by Peaches and Cream. OK that's a bad joke. For me, ''Cavatina'' from the movie The Deerhunter if pretty haunting. A few more can be heard on the Cd ,''John Williams plays the Movies''.

There's something about movie themes and music that I find mysterious and engaging at the same time.

What about Fantasia on a Theme of Thomas Tallis?

FWIW I concur with the Acoustic "Under the Milky Way" I have it,its lovely.

Check out the Bax Quintet for Harp and Strings,Elegiac Trio for Harp and Violin Fantasy Sonata for Harp and Viola and Sonata for Flute and Harp by Mobius on a Naxos CD .

Anything by Genesis after Hackett and Gabriel departed, and anything after Waters 'Mr Floyd' left Pink Floyd. Still haunts me after all these years.

Leonard Cohen's "Hallelujah" by J. J. Cale or Jeff Buckley or the original 15 verse composition by Cohen himself which I heard hom perform once.

Emerson String Quartet plays Bela Bartok works on me.