OH.. as a contest you almost need audio submissins... as Hetty said they are about the sound and tone of the chiming ... that make them good...
I have two chimes I've got over the years... one was a gift.. and the other was a rescue chime.. I refinished the pitted aluminum on.. the larger one chimes in 'G' major.. and the smaller one chimes in "G" minor.. so they happen to sound complementary together.. I did enjoy the sound of them together.. but untill a friend who is a piano teacher was by and explaned what their tones were.. I had no idea why...
right now the clappers of the chimes are tied up and out of the way.. but the sound of the tubes themselves banging together.. is about more than loud with the 40-50 MPH cold winds we've had lately..
a windchime contest/ challenge sounds fun.. mostly a visual interest ..humor thing I'm guessing... at least it won't be as fattening as my project for yesterday.. which was a dark chocolate ice cream with fresh raspberry swirl with home made marshmellow bits..MMMMMM .. interesting.... marshmellows haven't had marsh mallow in them since the middle of the 1800's.. the marsh mallow has been used for a few 1000 years.. and was used as a throat medicine.. back then..