for achingly-beautiful you might try rachmaninoffs vocalise featuring sylvia mcnair & the baltimore symphony orchestra- almost 7 minutes of total bliss. i actually tried to sit down and answer this question, but picking three is impossible...but here goes (in no particular order)..dvorak symphony 9, bach violin concertos, beethoven symphonies..arrrrrgh what about brahms, mozart, mahler, sibelius,, this is futile.. hayden, tchaikovsky, rimsky-korsakov..aaaarrrrghhh
