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 there's a link between them I don't understand?

'namely by finale in adapted score' is the wordplay.
'namely' becomes 'sc' (short for Latin 'scilicet', meaning 'namely').
'by' says to put letters next to each other.
'finale' becomes 'end' (the end of a story or show).
'in' indicates putting letters inside.
'adapted' is an anagram indicator.
'sc'+'end'='scend'
'score' is an anagram of 'creos'.
'scend' going inside 'creos' is 'CRESCENDOS'.

Can you help me to learn more?