Do Blues tonality uses the natural minor scale to build harmonies?

Yes, blues tonality often incorporates elements of the natural minor scale to build harmonies, but it also blends major and minor tonalities. The blues scale, which is derived from the minor pentatonic scale with an added flat fifth, is commonly used. This creates a distinctive sound that includes both the melancholy of the minor scale and the brightness of the major chords. Overall, the interplay between these scales contributes to the unique character of Blues Music.