If you were to use all of these notes and chords to write a song, you would be playing in the key of C major . To play a lead over these chords, you could use the Am pentatonic scale. The Am chord above is a natural minor to the key of C major. It is the Sixth note of the key of C major . Count from the C above and Am will be the sixth note.
Every major key has a natural minor in it.
Every sixth note of the major scale will be that keys natural minor. I will use the key of C major in our lessons and then other keys will be very easy to figure out in future lessons. My CD Rom has every major key illustrated. With each illustration I explain what scale to play over each major key. You can see now how much information would have to be illustrated.