Open up my eager eyes

Right. As pointed out to me, it's Friday afternoon. Accordingly, we have the first iteration of the self-writing lyrics quiz. I think it's come out really, really difficult.

Keep your answers to yourself for now, and I'll post a poll to allow for self-marking tonight/tomorrow. Feel free to comment on difficulty or otherwise (I'll be delighted if my estimate of difficulty is wrong), but please don't post answers in the comments.

( Yes! I'll take on the hard lyrics quiz )