How music may be distinguished? (5)
I believe the answer is:
noted
'be distinguished?' is the definition.
(I've seen this before)
'how music' is the wordplay.
'how' becomes 'note' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'music' becomes 'd'.
'note'+'d'='NOTED'
'may' acts as a link.
Can you help me to learn more?
(Other definitions for noted that I've seen before include "Celebrated or recorded" , "saw" , "Famed" , "Celebrity" , "Celebrated, eminent" .)