In the Harmonic form of the A Minor scale, what adjustment is made to the 7th note?

In the Harmonic form of the A Minor scale, the 7th note is raised by a semi-tone. This alteration creates a leading tone that resolves more strongly to the tonic note, which is the root of the scale. In the case of the A Minor scale, this means the 7th note, which is G in the natural minor scale, becomes G# in the harmonic minor scale.

This adjustment is crucial because it enhances the sense of direction in melodies and harmonies, helping to create a stronger resolution back to A. The raised 7th introduces a unique interval (the augmented second) between the 6th and 7th notes, which adds to the distinct character of the harmonic minor scale compared to the natural minor scale. This approach supports the functional harmony typical in Western music, where the raised leading tone effectively prepares listeners for resolution, thereby increasing tension before returning to the tonic.