Tunes from 'The Messiah (6)
I believe the answer is:
themes
'tunes' is the definition.
(I know this)
''the messiah' is the wordplay.
'messiah' becomes 'mes' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'the'+'mes'='THEMES'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for themes that I've seen before include "Subjects or unifying ideas" , "'Subjects, topics (6)'" , "Subjects or repeated melodies" , "Topics, ideas, motifs" , "Motifs, subjects" .)