Wayne Smith - “Under Mi Sleng Teng”

What is this bass sound?

The bass sound — and also the pattern itself — is a preset from the Casiotone MT-40, an inexpensive electronic keyboard.

This dancehall track has spawned hundreds of additional songs that use the same bassline and drum pattern.

How is this bassline put together?

Notice that this bassline uses a similar design to the one in "Around the World": three repeated patterns, followed by a new idea. Try to create some variations of your own.