Spotify measures energy from 0.0 to 1.0 and it represents a perceptual measure of intensity and activity. An energetic track will feel fast, loud and noisy. For example, death metal has high energy while a Bach prelude has low energy. Danceability is measured by how suitable the music is for dancing, based on certain musical elements including beat strength, tempo, rhythm stability and regularity. A value of 0.0 is least danceable and 1.0 is most danceable.