Sounds more like pissed off or depressed to me.
xD, this was just me messing around! XDD
But, to me it doesn't seem so much like a light tune, or as you described making someone in a bad mood fell happy. It really reminds me of a weird level in a video game or something. Anyway, the idea you had was certainly executed well. I could probably say that it is a little plain, maybe more variation would improve it.
KEEP IT UP
-sigh- I agree, it sucks xD. I do agree it could be executed better, and have more variation, thanks for the review!