Just the place for fast music at its north end (7)

I believe the answer is:
preston
'just the place' is the definition.
I can't tell whether this defines the answer.
'fast music at its north end' is the wordplay.
I cannot really see how this works, but
'fast' could be 'presto' (musical instruction) and 'presto' is found in the answer.
'north' could be 'n' (abbreviation) and 'n' is present in the answer.
No letters remain.
This explanation may well be incorrect...
'for' acts as a link.
Can you help me to learn more?
(Other definitions for preston that I've seen before include "English city" , "Town in Lancashire" , "Administrative centre of Lancashire" , "City in Lancashire" , "Town on the Ribble" .)
