which scales to use for certain chords?

I've been learning the harmonic minor scale and i have no idea where to apply it (kinda sad.) are u supposed to use it only over a minor chord? i dont get it, please help!

Ok, David. The Harmonic minor is pretty much just another scale; it really doesn’t have an exact purpose, or a right or wrong way to use it. Although most people use this scale when they are trying to harmonize with a melody in a minor (or melodic minor) scale, thus the reason it is called the harmonic minor. Sort of like vocal harmony, one person sings a melody, and another person harmonizes with it. This is the basic use for this scale cause it is based on the harmonic intervals of the minor scale. Well I hope this helps.

There is something that might help you also. See each one of the strings on your guitar is categorized by this relationship. The concept is nostly only used is classical guitar but it might help you.

The low E and the A string are known as the 'bass' strings.

The D and the G strings are known as the 'melodic' strings.

And the B and the high E are known as the 'harmonic' strings.

If your doing a song in a minor key, use the harmonic minor scale of that key as a basis for the solo. I also find the harmonic minor scale less boring than the minor scale. I've also seen more of it music than the minor scale.

If you're playing in A minor, a typical progression would be Am, Dm, Em. If the progression went Am, Dm, E, the G# in the E major chord would change the signature to harmonic minor.

So there's your answer.

Wow, I didn't know that. I suppose it makes sence, there's the G# in the scale and in E major.