Board Thread:Naruto Discussions/@comment-32569165-20170819210719/@comment-31477317-20170820013328

The soundtrack that played in Kimimaro's flashback. I don't know which episode, and also that soundtrack is unreleased. But you can find it in Youtube, though the quality is not as good as released soundtracks. Just search "Broken Bonds - Naruto Unreleased Soundtrack". It's one of the saddest IMO.