This is a short (37 sec) and simple loop that features bassoon, clarinet, and piccolo. It is simple, clean, childlike, childlike and catchy.
The mood is casually happy and content. Great background music for unhurried exploration or experimentation. See also http://audiojungle.net/item/simple-winds-loop/8569323 for a great matching loop – same instruments, length and BPM, different melody.