looking through the songs already posted now.
i really like the opening for brotherhood - "again" by yui. i actually had the song in my playlist before watching brotherhood and almost cried when i heard it as the opening for it because i didn't know it was used there (even though the song clearly says brotherhood ost in the album...
).
i've never seen k project but i like the song for it! maybe i'll check it out.
and of course the songs for nagi no asukara and no game no life were excellent - i love them! and gatchmannnn.
@
(you need an account to see links) is the song for btooom! by nano? sounds a lot like her