SKA is a style of music that emerged in Jamaica in the late 1950s. It is characterized by its upbeat tempo, prominent basslines, and brass instrumentation. While the term "ska" is widely used to describe this specific style of music, there are several synonyms that can be used interchangeably. Some of these synonyms include "rocksteady," "bluebeat," and "early reggae." These words all refer to variations of the ska sound, with rocksteady being a slower, more soulful take on ska, and bluebeat being a term used primarily in the UK to describe the same style. Overall, there are many ways to describe the vibrant and energetic music that is ska.