And why would a Demon be wasting time possessing wind chimes? I know of one thing that possesses those things: wind. Every time the wind blows, the weight in the middle gets blown into the chimes, which also get blown around a bit. This adds to the randomness of the melody you get, since there are so many variables that determine which chime the weight is going to hit, and how hard.
I think the Demons have far more important things to worry about. Such as that our earth is about to be fully enveloped in communism. Such as World War III in its early stages (the Iran war is still not dead, and it will bring in all of Europe and China, coronavirus or none, into it). Such as all the billions going to churches and mosques every week, reading that stupid bible or quran full of communist spells and taking these death books seriously. Such as trying to ensure the reptilians do not take full control of the earth and move in, ruining the whole planet in the process. I don't think Demons would be fooling around with such stupid things as wind chimes or yard sale items.
Or possessing random people. Only angels have the time to waste doing that.