Seppo Ilmarinen said:
Debussy "Clair De Lune" (J.Williams & J.Bream classical guitar arrangement)
http://www.youtube.com/watch?v=T1i_2HYmJkA
Nice version, so is the piano version that Mrs. Tigersoap posted but my favorite is still the orchestral version:
http://www.youtube.com/watch?v=sIM2LaC4Upw
Edvard Grieg - In the hall of mountain king:
http://www.youtube.com/watch?v=uQxsyA6s90Y
Mussorgsky - Night on bald mountain:
http://www.youtube.com/watch?v=iCEDfZgDPS8
Johann Strauss II - The blue Danube waltz:
http://www.youtube.com/watch?v=_CTYymbbEL4
Tchaikovsky - The Nutcracker op. 71, March:
http://www.youtube.com/watch?v=lzDYnpaW-8s
Tchaikovsky - Nutcracker - Trepak, Russian dance:
http://www.youtube.com/watch?v=iFPVJGEuX3k
Luigi Boccherini - Minuet: (sounds of nature were added, not in the original score) :P
http://www.youtube.com/watch?v=5fLPBIBOE5U
Tchai - Nut - Waltz of the flowers:
http://www.youtube.com/watch?v=DnkO1r_gpH8
Tchai - Nut - Dance of the reed pipes
http://www.youtube.com/watch?v=hGwjHRfcsMQ
Tchai - Nut - Dance of the sugar plum fairy:
http://www.youtube.com/watch?v=Rapf3g_XvCc
Tchai - Swan Lake - Dance of the swans:
http://www.youtube.com/watch?v=sd4VsbM4fOo
Tchai - Swan - Lake in the moonlight:
http://www.youtube.com/watch?v=CCbYB5Kxy6s
Brahms - Hungarian Dance no. 5:
http://www.youtube.com/watch?v=5tvjR0j5yEY
Maksim Mrvica playing Franz Liszt's Hungarian Rhapsody No. 2:
http://www.youtube.com/watch?v=byGI1mDi3no :)
Just noticed how many I posted, I'll stop. Last one:
Mozart - Marriage of Figaro overture:
http://www.youtube.com/watch?v=ikQNFqVkNNc
And this one is from the same opera, many people know it from Shawshank redemption,
Mozart: Marriage of figaro, Sull'Aria:
http://www.youtube.com/watch?v=Kfx5JPicXeQ
edit: order