well, to start i just thought it sounded pretty. i won't lie to you, that's how most things i do start out.
but then i put a little more thought into it, and established "dovegrass" as a combination of the holy and the worldly.
together, you get dovegrass!
also, it sounds like bluegrass, one of my favorite musical genres. if you ask me, any gospel-y bluegrass should be called dovegrass.