I'm looking for two songs – the first is the really pretty music that played back at Drum Island during Chopper's flashbacks and such.
I know this post is old, but I might be able to help if you're still checking this topic.
Might the song you're referring to be either of these?
orCan't confirm whether the download links work or not because I don't download them. (I plan on buying the BGM soundtrack(s) someday instead.) But hopefully that might give you the titles at least.