Sounds really good. We had to make some changes to the rules that you can read in this post.

It states: NOTE: While we used to allow acapella performances to enter, recently there have been far too many entries of singers without any musicians. Open Mic is a community of musicians and for this reason entries without some musical instrument being performed will not be considered a valid entry. NO KARAOKE

This, however, is a very good, musical performance so we'll let it slide.