The minor pentatonic scale on guitar
The minor pentatonic scale is commonly used to play rock and blues lead. It is essential to learn this scale to be able to improvise on a blues or rock progression.
The pentatonic scale has five notes (penta is for five). It is like a natural minor scale without the second and the sixth note.
The intervals are:
1(1/2)-1-1-1(1/2)-1