Here I explain the advanced blues improvisation concept using the mixolydian mode beside the minor pentatonic. I am playing a standard blues form :

A / A / A / A
D / D / A / A
E / D / A / E

The scales you can use are :

A : A minor pentatonic / A mixolydian mode
D : A minor pentatonic / D mixolydian mode
E : A minor pentatonic / E mixolydian mode

Download the jamtrack here : https://itunes.apple.com/album/slow-s…
To follow this tutoial it is strongly recommended that you first check the basic improvisation concept tutorial : http://youtu.be/7yAzhfWjHTA