Most achingly-beautiful music

All late Beethoven, but in particular:
String Quartet Opus 131 - Adagio ma non troppo e molto espressivo
Piano Sonote Opus 106 (Hammerklavier) - Adagio Sostenuto
Piano Sonote Opus 111 - Arietta: Adagio molto, semplice e cantabile

Keith Jarrett - Koln Concert Part III

Chopin, "Piano Sonata No. 3 in B Minor, Op. 58."

Regards,
-- Al

Forgot to mention:

Dave Brubeck - Koto Song
Eva Cassidy - Autumn Leaves

Tchaikovsky 4th Symphony - Beautiful themes to his 7 symphonies and this is my favorite!

for me it's earth, wind and fire's sun goddess and gratitude album and santana's greatest hits and smooth jazz volume 2. I use these sound tracks to test my various solid state and tube systems and my electrostat and planar loudspeakers. Hearing various instruments is what moves me. I didn't know a few watts on a well made tube amp and tube cdp on an ess heil 1D modified would sound so live!