
Learn a simple trick—use the 2 chord triad—to identify and generate common jazz tensions (9, 11, 13) and their altered variants across any key.
This lesson shows how stacking thirds from the 2 chord reveals the natural 9th, 11th and 13th for any jazz seventh chord, and how altering that triad produces sharp/flat tensions. You’ll see clear examples (including Eb7 and G7) and a three-step practice routine to internalize minor and major 2‑chord triads, then apply them over major and dominant chords with altered tensions. By the end you’ll be able to read lead sheets with extended chords and choose practical voicings using the 2‑chord shortcut.
