Michiko Naruke Wild ARMs' music (composed by Michiko Naruke) has an old-western feel to it, that's both melancholy and relaxing to listen to. The composer uses guitars, harmonicas, banjos, etc. in a way that clearly reminds Ennio Morricone.
If you're a fan of spaghetti western movies, or just wernest OST such as Morricone's, you will enjoy this greatly.