Rewind that piece of music so we can put these numbers together (3)
I believe the answer is:
sum
This could be a double definition.
'rewind that piece of music so we can put these' is the first definition.
The definition suggests a singular noun which matches the answer.
'numbers together' is the second definition.
'sum' can be an answer for 'numbers' (thesaurus). I am not certain of the 'together' bit.
Can you help me to learn more?
(Other definitions for sum that I've seen before include "Quantity of money" , "Arithmetical problem" , "Amount, of money say" , "An additional problem" , "pupils find it a problem" .)