Who composed the music for Nintendo's Game Boy version of Tetris?

Hirokazu Tanaka composed the music for Nintendo's Game Boy version of Tetris.

Tanaka was a Nintendo composer and sound designer whose work appears in many of the company's classic games. For the 1989 Game Boy release of Tetris, he created the game's original musical presentation, including the arrangements heard during play.

The best-known A-Type music is based on “Korobeiniki,” a Russian folk tune associated with Tetris around the world. The Game Boy version also offered other music selections, including a piece derived from Johann Sebastian Bach's music. These choices helped give the monochrome handheld game a distinctive identity despite its limited sound hardware.

The other names are connected with the game's development but not its composition. Gunpei Yokoi produced the Game Boy Tetris project, Satoru Okada directed it, and Koji Kondo was another prominent Nintendo composer. Their roles are why they can appear in discussions of Nintendo's classic games, but Tanaka is the credited composer here.