Oh nice! I would have heard Odin on B ending as well, but I skipped the credits by mistake lol. Thanks for the quick answer!
The one thing I didn't like that much about the OST was that there was pause menu music. The pause menu has always felt to me like it should be a break from the action and not contain anything immediately new that would draw you into it or otherwise interrupt your gameplay significantly. A lot of games just use a low pass filter that goes into effect on the music already playing when you pause, which I think is nice. The pause menu music in this one was pretty cool, despite being short, so on the one hand I like it, but on the other hand I don't like that it exists, you know?