Seriously. Hear me out here.
Wind chimes are in pentatonic scale so there are no dissonant intervals (black keys on the piano). Introduce wind, which in this regard is basically a random value generator that gives you both different combinations of notes and rhythmic diversity. Listen for something catchy.
This actually works. It’s not gonna give you the melody to Take On Me, but it’ll give you a fragment that might spark your imagination. Try it.