Very Nice!
I'd have to say, quite frankly, this does not sound like a boss fight to me... or any other sort of fight for that matter... Rather, in my opinion this sounds almost like a song you might hear in, say, Mario Kart, on the Rainbow Road stage (or something close to it). That or possibly a theme played when flying the airships in FF... It just seems to portray freedom like that.... Anywhos, enough of this expository banter, as for me... it's posting time!