Samuel Jonathan Johnson was an American singer, songwriter, and keyboardist, who made significant contributions to the soul and funk genres during the 1970s and 1980s. His music is characterized by its emotive vocals, complex arrangements, and heavily synthesized keyboard sound. His most notable work, "My Music," released in 1978, is considered a classic in the soul genre and has had a lasting impact on many subsequent artists. Despite his relatively short career, Johnson's unique style and influential works have secured him an important place in the history of American soul music.