Music:
Mikio Endo
Only 4 credits in the database (the last one being 12 years ago). It looks like guessing the composer would have been impossible.
http://k-project.jpn.com/staff_cast/
Edit: Soundtrack included with Vol.2 BD/DVD which releases on November 7th. Wow, they're releasing this anime really quickly. Vol.1/2 release simultaneously only a month after it airs.