I think it would be pretty cool if you could change the song playing on your spinet buy trading it 1 gil.
Jukebox <You can have this.>
Then after every tally your moogle could be like "Hey master! kupo~ Guess what I found sweeping up?"
/Moogle hands over the gil he found sweeping up.
AND....
When you open your mog house, your friends can change the song too by trading gil to the spinet.
:o