An orchestra called Autumn Leaf （オータムリーフ管弦楽団） is performing eroge and visual novel (and anime) songs for free. Looks like they’re an amateur group but they kind of do it out of their own expenses, so quite amazing.
Some songs they have performed:
– Nitroplus songs (Demonbane, Muramasa, Saya no Uta)
– Muv-Luv Medley ~Alternative~
– Tori no Uta (Air)
– Asphodelus (Aiyoku no Eustia)
– Kimi ga Nozomu Eien
– everlasting fantasia （ef―a fairy tale of the two.）
– Sora no Mukou ni (Symphonic Rain)
– Little Busters!
– Ranpin’ (Quartett!)
– Shukufuku no Campanera
– My Soul, Your Beats! (Angel Beats) 
And this is their youtube channel. The sound is a bit low quality, I’m trying to find a way to get them higher quality…
Those are all played during concerts which were free entry.
like this one http://autumn-leaf.org/2013/02/23/%E7%AC%AC8%E5%9B%9E%E5%AE%9A%E6%9C%9F%E6%BC%94%E5%A5%8F%E4%BC%9A/#more-255
May I ask how would one go to request a song? Just pm their channel?
Would be interesting to see if they’d pick up one of the more orchestral Katawa Shoujo tracks
Awesome find! Been longing to listen to something like this but I never managed to find such a group. Thanks a lot for sharing! I would love to have better sources as well. Such goodness needs to be enjoyed in HQ.
Thanks for sharing. Pretty awesome.
This is pretty awesome, thank you.
Also, 15:18 in the Nitroplus video = all the feels. T_T
Not perfect, but still awesome in every way. Fantastic find!