Xaphan: Book of Angels Volume 9 is an album by the Secret Chiefs 3 performing compositions from John Zorn's second Masada book, "The Book of Angels". It is the fifth studio album to be released by the Secret Chiefs 3. As with the other volumes of the Book of Angels series, the titles of the songs are characters from Jewish and Christian mythology. The title of the album, Xaphan refers to one of the fallen angels who rebelled with Satan and set the Heaven on fire.
The Scene Point Blank review by Kevin Fitzpatrick stated "Spruance is a noted perfectionist and as such, surrounds himself with great musicians he can count on to deliver the goods. This will always be a good thing and with Xaphan showcasing the likes of Tim Smolens and Ches Smith, you can pretty much guarantee an album of substance, worth, and beauty that has become a cornerstone of both Zorn and Spruances work throughout their career".