I especially like the voice of Sarah Gregory. I think this song (Always Summertime) is a very good example (http://www.youtube.com/watch/?v=pT_4YytbF-w).
You can download it on itunes, along with various other songs from The Gregory Brothers. Dang, I've been listening to it for such a long time!
Oh yeah, btw, my merchant is now level 52/41! I could job change to blacksmith, but I want to level up vending and enlarge weight capacity. I think I'll try to change at job 50... but I don't know if I can finish that.