About boy joining a new church - sound quality (9)

I believe the answer is:

resonance

I'm a little stuck... Click here to teach me more about this clue!

'sound quality' is the definition.
'resonance' can be an answer for 'quality' (resonance is a kind of quality). I'm unsure of the 'sound' bit.

'about boy joining a new church' is the wordplay.
'about' says the letters should be written in reverse.
'boy joining' becomes 'noser' (I am not sure about this - if you are sure you should believe this answer much more).
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'church' becomes 'CE' (abbreviation for Church of England).
'noser' backwards is 'reson'.
'reson'+'a'+'n'+'ce'='RESONANCE'

Can you help me to learn more?

(Other definitions for resonance that I've seen before include "Sonority" , "shaking" , "Deep, clear, ringing quality" , "Sympathetic vibration" , "Plangency" .)

I've seen this clue in The Daily Express.

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