Check out Pterodactyl's Violitionist Session!
They perform three songs in a special unique acoustic arrangement.
1. "The Hole Night" - http://www.youtube.com/watch?v=iVz70B9GJdk
2. "Nerds" - http://www.youtube.com/watch?v=Yl8lNj6TC9k
3. "December" - http://www.youtube.com/watch?v=bi8RHCz-JdY
This is part of the Violitionist Sessions, which are exclusive and unique recordings of 3 songs + a 3 question interview from Denton, Texas.