On "Jamy Killed His Great Grandma":
Tyler Akers - vocals/keyboards, Ryan Bryant - vocals/guitar/mandolin
On "The Pterodactyl Song":
Ryan Bryant - piano/vocals, Tyler Akers - disembodied background vocals, guitar you can't hear
Tyler Akers & Ryan Bryant realized how Jamy Casteel absolutely shaped their lives with his ridiculous stories.
This is a tribute to the man, the myth...James Casteel.
Also, to explain "The Pterodactyl Song": It was completely made up on the spot, music and lyrics at all. Bask in our awesomeness.