The D Harmonic Minor scale is a seven-note scale that is derived from the D Natural Minor scale. It is created by raising the seventh note of the natural minor scale, which in this case is C raised to C#. The notes in the D Harmonic Minor scale are D, E, F, G, A, B♭, and C#. This scale is often used in various music genres, including classical, jazz, and metal, due to its unique sound and emotional depth. The raised seventh note creates a leading tone that resolves to the tonic, making it effective for creating tension and resolution in compositions.