Every bell sound is not music.
Bells intended to be heard over a wide area can range from a single bell hung in a turret or bell-gable, to a musical ensemble such as an English ring of bells, a carillon or a Russian zvon which are tuned to a common scale and installed in a bell tower. Many public or institutional buildings house bells, most commonly as clock bells to sound the hours and quarters.(wikipedia)
When the intention is of music,there is a set of bells used,which you can see from the wikipedia,English ring of bells,carillon etc.Single bell produces only sound,not music.
The hadees mentions Jrs (singular),not juroos (plural) so there is no hint of music,unless the delusional critic is hallucinating.