ring your bell: The harmonies in this song are absolute love, the way the three way harmonies are constructed - especially in the bridge - are just beautiful. Each of the girls' singing is amazing here, Wakana sounds like her old self, Hikaru sounds fresher, and Keiko great as always! This isn't my favourite song on the single, but the harmonies take my heart away.
Koibito no Mukashigatari no Yuugure no: Favourite track on the single. It has such a dark feel to it, and no matter how much I'm sick of Wakana led songs, her voice suited this song. I have no words I love it so much!
ring your bell (in the silence): Much more calming than ring your bell, and I like it more. Creepier too, it brings kind of a darker tone to the anime that contrasts with the feeling RYB gave off. Really like it!
Overall, like the entire single was great, but I'd love an album soon!