How do you change a natural minor scale to a harmonic minor scale? For example: d harmonic minor

http://musiced.about.com/od/lessonsandtips/qt/minosclaes.htm

Thank you. That helped a lot!

To change a natural minor scale to a harmonic minor scale, you need to raise the seventh note of the natural minor scale by a half step.

Let's take the example of the D natural minor scale.
The D natural minor scale consists of the notes: D, E, F, G, A, B♭, C, D.

To change it to D harmonic minor, you need to raise the seventh note, which is C, by a half step. So C becomes C♯.

The notes of the D harmonic minor scale would be: D, E, F, G, A, B♭, C♯, D.

Therefore, the D harmonic minor scale is: D, E, F, G, A, B♭, C♯, D.