Welcome to the first episode of Vikings True20 Actual Play. If you haven't listened to the story so far, you might be a bit lost.
The music is from Warrior ( The SoLariS Remix ) by SoLaRiS available at ccMixter. You can find out more about SolaRiS at Jamendo.
Our heroes have entered the trade route to Constantinople in earnest. You can read a very brief explanation of the route at Wikipedia. The group is on their way to Aldeigjuborg in search of the Bulgar Gold.
The condensed skill list can be found at my workbench at the Accidental Survivors forum.
You can download the episode here.