A Pleasant But Dull Tune

This track succeeds in setting a nice and happy atmosphere. But, I have to say that it is rather short, which is made worse by the fact that it does not loop well. Even if it did, the track becomes a little boring as it progresses.

It seems to me like this is the type of music that blends well with the background, like in a waiting room at the doctor's office. Consequently, having this quality means that the track is pretty ignorable and, thus, it isn't very engaging. This means that I personally wouldn't mind hearing this in a lobby, but I wouldn't play it on my iTunes or stereo.

All in all, this track does fulfill your stated purpose of making something "a bit happier than most of [your] songs." It's now your job to figure out whether or not you are truly satisfied with it.