So I spent the last 10 hours, 30 minutes putting this together from scratch. Don't ask why. All I know is that I felt like arranging the song, and I did it.
For those who don't know, Mabinogi is an MMORPG, I really like the soundtrack, and the song this is mostly based off is called "An Old Story From Grandma", which is the title theme for the game. Here's a link to the version that I had stuck in my head: http://www.youtube.com/watch?v=BrOZ3gxFg4E