Editing Blues scale (section)

{{Short description|Musical scales}}
The term '''[[blues]] scale''' refers to several different [[musical scale|scales]] with differing numbers of [[pitch (music)|pitches]] and related characteristics. A blues scale is often formed by the addition of an out-of-key "[[blue note]]" to an existing scale, notably the flat fifth addition to the minor pentatonic scale or the addition of the minor third to a major pentatonic scale. However, the heptatonic blues scale can be considered a major scale with altered intervals.