I don't normally quote entire paragraphs but this post from a fellow traveler merits it:
2. Sound vs. Symphony: It's usually only about sound for me. Narratives - when the music peaks, how sections relate to each other - I've never really cared for. I've also never really been able to hear tonal relationships, so the grand D major falling into Db major (of the 9th) doesn't do much for me (of course, the muted resonance of strings playing in a very foreign Db major thrills me). Ditto my TV habits: if Ben misses an episode of Lost, he can't bring himself to watch a later episode without first catching up on what he missed. I, on the other hand, have never understood plot twists and can easily go to bed without first finding out who the winner is on Iron Chef. But sound! Piano, celesta, harmonium, 3 harps, organ, 2 mandolins, throw in a lingering flute and an almost inaudible clarinet, it's orgasm central right there.
It's about the sound for me as well, although even simpler, non-orchestral, instrumentation that blurs foreground and background can be equally as satisfying e.g. Chas Smith's Scircura: