Maybe Melvyn with e.g. music and drama loudmouths (9)

'drama loudmouths' is the definition.
The answer and definition can be both people as well as being plural nouns.
Perhaps there's an association between them I don't understand?

'maybe melvyn with e g music' is the wordplay.
I cannot quite understand how this works, but
'g' is found in the answer.
'music' could be 'raga' (I have seen 'Indian music' mean 'raga' so perhaps 'music' could also mean 'raga') and 'raga' is found in the leftover letters.
This may be the basis of the clue (or it may be nonsense).

'and' is the link.

Can you help me to learn more?