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In this lesson, we dig into Unit 7, Sam Jones’ classic tune that blends the blues with traditional bridge. I break down the essential blues elements that define the sound of the tune, while also exploring the key substitution of Abmaj7 in place of D-7, and how to make that sound natural and musical in your lines and chord choices.

We’ll also take a close look at the unusual form—a blues with a bridge—and discuss how to navigate it confidently. This tune is an excellent vehicle for strengthening your blues vocabulary while expanding your harmonic awareness.

The lesson includes a detailed PDF and a backing track featuring Ulysses Owens Jr., so you can immediately apply these concepts in a real musical setting.