Volume changes, namely by finale in adapted score (10)

'volume changes' is the definition.
The answer and definition can be both human attributes as well as being plural nouns.
Perhaps they are linked in a way I don't understand?

'namely by finale in adapted score' is the wordplay.
'namely' becomes 'sc' (abbrev for Latin scilicet meaning 'namely').
'by' is a charade indicator (letters next to each other).
'finale' becomes 'end' (the end of a story or show).
'in' means one lot of letters goes inside another.
'adapted' indicates an anagram.
'sc'+'end'='scend'
'score' is an anagram of 'creos'.
'scend' put into 'creos' is 'CRESCENDOS'.

Can you help me to learn more?