Dan LeonardGuitarist Dan Leonard has been a full time performer and teacher since 1987. He has taught hundreds of students jazz, blues and rock improvisation; from intermediates to working professionals. Over the years he has distilled his approach into the basis for his forthcoming instructional book “Organizing the fretboard for improvisation”. Dan began his career playing in regional rock bands. After studying classical guitar and composition in college he turned his focus to jazz, which is where it has stayed to this day. He is currently guitarist with Blind Pig recording artist Deanna Bogart as well as leader of The Dan Leonard Trio. His first solo recording “Time Alone” was released in 2000 with the follow-up, “The Middle Path” due out in the fall. His many performances include The Vaison Jazz Festival in France, The Monterey Blues Festival and The Clearwater Jazz Festival.
Dan Leonard: Hi! I'm Dan Leonard and I'm going to talk about dominant seventh scales in the five positions.
The first dominant seventh scale covers the Mixed Lydian scale, or the Mixed Lydian mode, it's a mode of the Major scale. Once again, a little basic music theory will help you to understand that, but it's a great way to think of it, it's a Major scale with a flatted seventh note in it. So, there is the flatted seventh.
So, that's the Mixed Lydian scale based off of this E chord form, and once again you could take that flatted seventh from the Major scale and come up with the fingerings in all the positions.
Another common dominant seventh scale in jazz is the Lydian Flat Seventh scale, which is just like a Mixed Lydian, but it has a sharped (ph) fourth note. So, here is the sharped fourth, but it still has the flatted seventh.
So, that's the Lydian Flat Seventh in that position.
Those are two common dominant seventh scales in jazz.