The carillon is the instrument which controls and makes up church bells. In order to be a carillon, there have to be 23 bells, or two octaves minus two notes (trad. Bottommost dflat and eflat) - otherwise it's just a chimes and chimes are boring. The only other carillonneur I know on hubski is birchbarkcanoe. We're a rare breed.
Maybe I'll post a video of me playing sometime.