Ok. I have no idea why but this idea of putting touhou characters to music has been the only thing I can think of since posting. So check this out here.
Hijiri is Bob Marley. Absolutely has to be. So the Myouren Temple is Jammin. >_< I mean this is a much more realistic pairing than my original idea. I can completely see this one. 100%
I personally think they are the most rebellious of the groups given their background, so I think the Eientei gang has to be Rage Against the Machine. I personally envision Reisen on a guitar, and damn good at it too. But to sing.... imo I think Kaguya. (Feel free to think it over yourself)
Marisa is such a versatile character to really pin just one theme down. Maybe because shes a main character... she has different interactions between different people so you can just say one thing for sure. However, in a flash of inspiration, I thought of the ultimate thing for her. Marisa releases a single. Biz Markie - Just a Friend. Wants patchy cause she got the books she needs. Think it makes better sense if you listen to the lyrics. Shes the tomboyish sort, known fact, so I figure it would makes sense if she had an interest in Patchy.
So that's just a couple ideas I had today.