Underwater Theme

The "Underwater Theme" is a recurring musical theme composed by Koji Kondo, first heard in World 2-2 of Super Mario Bros. It was originally set in the key of C major, with the time signature of 3/4 that is mostly associated with waltz, playing at a tempo of 226 beats per minute. As it was "easy to imagine what it should be like," it was the first composition Kondo finished for the game. The theme plays in every level and section set underwater in Super Mario Bros., with following rearrangements largely featuring as title screen music.

Reuses

 * Super Mario Bros.: The Lost Levels
 * VS. Super Mario Bros.
 * Super Mario Bros. Deluxe
 * Mario & Sonic at the Olympic Games (Wii)
 * Super Mario Maker
 * Super Mario Maker 2

Super Mario World
The soundtrack for Super Mario World includes an arrangement by Soichi Noriki and performed by the Mario World Band, titled "Shining Coral".

Super Mario Bros. Deluxe
In addition to ports of the original underwater levels using the original soundtrack, the Super Mario Bros.: The Lost Levels title features a rearrangement with more prominence on the spacing echo effect of the main tune.

Appearances in other media

 * Smule Magic Piano
 * Smule Magic Piano