Thanks for the review! You should really finish playing the demo - the next 3 chapters are even better (in my humble opinion). It leads up to chapter 5, wherein all four of the teams you make join together to save the world.
The only game music that I use with any consistency is from E.V.O., otherwise they are original works I've found from MIDI sites on the internet. And I use Dragon Warrior 1 village MIDI for shops.