One of the saddest Pokemon themes ever in my opinion
This piece is originally from Black & White and is on site as such :) https://www.ninsheetmusic.org/browse/series/Pokemon#sheet2357 (https://www.ninsheetmusic.org/browse/series/Pokemon#sheet2357)
(I don't know off the top of my head if they are exactly the same, it uses different soundfonts but I'd need to check if any of the notes are different.)
Oh wait really? I didn't know it was originally from black and white. Sorry about that