What is the significance of a blues scale in music theory and how does it contribute to the overall sound and feel of a blues composition?

The blues scale is important in Music Theory because it adds a distinct sound and emotion to Blues Music. It includes specific notes that create a "bluesy" feel, such as the flattened third and seventh notes. These notes give the music a sense of tension and sadness, which are key elements of the blues genre. Overall, the blues scale contributes to the unique sound and emotional depth of a blues composition.