Awesome! I'm glad you got to play it (and even more glad you enjoyed it)!
As for resolution... as far as I know, I didn't see any options in RPG Maker for changing the resolution, so the default it that tiny window (which is also how I tested everything, too). That said, you can use Alt-Enter to fullscreen it, though depending on your monitor's resolution there might be stretching.
As for the music... I completely forgot to add in the music. That's my bad.