Well, I've stayed away from further hints for the time being because, for the DT12 song, I've given you a 50/50 shot, and for 3 other songs, I've given enough hints to have given those away to the point that, although I haven't confirmed it, all three have been guessed correctly by people in this thread. So, 4 non-I&W songs have been hinted at and guessed.
I will say again, though, for the vast majority of fans, even if you somehow found nothing else to like in the rest of the set, I&W and the encore alone will make you VERY happy you went.