Listen to it, there is nothing but vocals, drum and slight keys. I really dig this track, I havent listen to it in a long time and tonight I was making a mix for a friend when it blew me away. The mix includes: I Wonder, Open Book (my favorite) original: Van Gough, Love Thy Will Be Done, Get Blue, original:Empty Room,Crucial (with sax). I think its a damn good mix. What else can I add without straying from the sound/time?