A few weeks ago somebody asked me to do this, because apparently the prototype version of Mother was ripped before, however the 2 ending songs wasn't ripped before.
Turns out it was stored on a completely different bank for whatever reason, and it was a bitch to relocate it.
I didn't arranged the NSF, because I never really played this game to begin with. : P
Because I can't post NSF files...
http://forums.nesdev.com/viewtopic.php?f=6&t=115&p=210488#p210488
However I include here a picture how my file works.
Thank you for your hard work!
Oh and you should play Mother some time, it's really a great game!