Here goes... some suggestions.
'Book' for
本の見る夢, album
http://vgmdb.net/album/56538 has the last track as an arrangement of this one and the title change is from book to an e-book / publication (
電気書籍の見る夢).
If we do lock 残香 as zankou, lingering scent seems fine, 香 alone can mean incense, perfume, makes sense. In the end, it's really your preference how you want to render it.
帳 is read chou in a register, book sense: denwachou - phonebook, gachou - album. Here, I'm going for tobari reading in which case it can't mean book (I think). Doing 空 as a simple sora - 'sky' and uhhh.... Wrapped in Sky Curtain(s) / Enveloped by the Sky Curtain(s)? Heh.
'Hon o yomou' looks like Let's read a / the book, no problem there.
*I reserve the right to be completely wrong*