Many guitar players like to use the modal system. This mode is the Phrygian mode, it starts on the 3rd note of the major scale. The example is G Phrygian, it is in the key of E flat.
The notes are G Ab Bb C D Eb F G. It is used over a G minor chord in the key of Eb.
To download the printable version of the two examples in TAB and Music Notation click on the link phrygian_mode_g