This is my very simple arrangement of Korobeiniki ("The Peddlers"), a Russian folksong. It is most widely known as the Tetris song (more specifically, Tetris Theme A). It is one of my favorite songs.
Made in FL Studio 8. Original composer is some dead guy from Russia. Inspired by the arrangement made by Hirokazu "Hip" Tanaka (he did the original Game Boy tetris arrangement). Copyright (in and only for videogames; it's Public Domain everywhere else) Tetris Holding LLC.
Oh, and did you know that Hip-san is the current president of Creatures Inc., the company responsible for the Pokemon card games and toys, as well as the Mother (Earthbound) series?
*Edit* I did a little rebalancing and changed the bass's sound.