This is a single elimination bracket, so each song is only getting judged against the adjacent song with the same letter code. There's no way to enforce that in the poll structure, so just vote accordingly. Poll will close some time Sunday (I'm not sure if it closes at the end of the 5th day from now, or exactly 120 hrs after I submitted the post).
We had a tie, something I didn't have a good procedure for - but in this case since we were narrowing 14 down to 7, instead of giving one song a bye I'll just advance both songs to give us 8 so we can go down to 4, then 2, then 1. And in the meantime I'll figure out a tiebreaker procedure in case one of the final 3 rounds has one.