sending mail: quirky, techno pop interlude (reminiscent of Discomunnication)
insomnia: Want: dark, heavy rock track/Prediction: orchestra interlude
Like a Doll: Can only think of "Dolls"
Aria: Want: Something along the lines of alan's Sora no Uta/Prediction: classical pop interlude
Thank U: Cute pop song, something like "Honey"
overture: dramatic classical interlude
do it again: dancetrackdancetrackdancetrackdancetrackdancetrack
November: medium ballad like HANABI~episode II~ or Sweet Season