I haven't been able to find out more about them either
It's interesting how often the most talented musicians are often the most modest and don't go out of their way to heavily advertise themselves. What a shame... If a beautiful piece of music is played in the woods and nobody was around to hear it, dose it make a sound?
Anyway, lets talk about my doujin music collection. My collection specializes in instrumental only music and it ranges from all different types of music from Jazz, dance, techno all the way to hard rock. Some of the bands I will recommend below are instrumental only but some might have half vocal and half instrumental tracks. It's a personal preference of mine to keep my collection vocal free because 1) I don't understand Japanese lyrics 2) a lot of the female singers in vocal tracks are high pitched and squeaky enough that it hurts my ears 3) it's easier to recommend to my fellow westerners to enjoy if its vocal free and 4) it's more in tune with ZUN's vision of the music if its without vocals because none of ZUN's in game music has vocals.
My recommendations are as follows:
Xi-on
UI-70
Tutti Sound
Black Cat Lounge's Touhou House Sets
Tokyo Active Neet's
Tatsh Music Circle
Swing Holic
Sound Sepher
Sound Online
Sound Holic
Silver Forest
Orange Jam (One of the few actual circles with an English singing vocalist and International spread of musicians!)
Ooedo Express Mail
Magnum Opus
Lime Green (Aka Notzan ACT)
Levo Lution
Kota-rocK
IZMIZM
IOSYS (Yes, mostly famous for vocals but have released albums that are instrumental only such as Faithful Star)
Demetori
DDBY
dBu
Dark PHOENIX
Crazy Voltage
Clear Quartz
Assault Door
Alluvial Comet
=Neutral=
[R.I.N. ft. ガネメ]destrUctioN = resurrectiON
[GET IN THE RING]
Logical Emotion
cYsmix
That is what I currently have as of the date of this post but I am always on the lookout for new talent to add to my collection so it is always steadily increasing in size. I look forward to seeing more recommendations on this thread as it will allow me to be exposed to more bands that I have probably overlooked or didn't know existed.
I would love to share with you links to all this great music but unfortunately I don't want the Mod Tengu to come down from the sky and hit me with the ban fan. Trust me though, if I was able to find it out there on the internet then so can you.