A whole tone scale is a musical scale consisting entirely of whole steps, meaning each note is two semitones apart. This creates a unique sound that is often described as dreamy or ethereal. There are only two whole tone scales, as they can be constructed starting from any note but will repeat after six notes. In Western music, whole tone scales are less common than major and minor scales. They are often used in impressionist music, notably by composers like Claude Debussy. The symmetrical nature of the scale allows for interesting harmonic possibilities and can evoke a sense of ambiguity in music.