I've played the game, and yes, the music is awesome!
I've tried contacting him (or her) before and he never responded, so there goes that idea. Anyways, the music will be made by clonex25 and Magnius, and the ones that sound bad are probably the ones I made myself because I didn't want the generic crap from RSE.
Yeah, I'm going to (somehow) try to figure out how to disable the map until the flag is set.
Yeah, it's still Birch because I didn't edit the text at that point, and so what would happen if you called Elm and got Birch instead? :S Don't worry, it's fixed for Beta 2.
Annddd... you're right. Since Emerald didn't have one built-in, I thought that it would be hopeless. But, some ASM later, I have done it! It will be available in CrystalDust Beta 2.
Really? I actually Youtube'd PM'ed him once, and he responded in like a week. Give it another try? :)