You already know the 2-5-1 progression. It is the engine of all gospel music. But if you play the standard 2-5-1 all the time, your playing becomes predictable. Your basslines jump awkwardly from the 2, up to the 5, and back down to the 1.
What if there was a way to keep the same function of the progression, but change the bassline into a buttery-smooth, descending “half-step slide”?
This is where the Tritone Substitution comes in. It is the defining sound of advanced, jazzy gospel chords, and it’s the secret weapon professional musicians use to make the congregation (and the bass player) lean in.
What is Inside the Masterclass?
This module, The Half-Step Slide, takes your theory knowledge and applies it to the “physics” of the keyboard. Here is what you will master:
1. The Theory: The Musical Doppelgänger
A tritone is the exact halfway point of an octave (three whole steps). Because of this unique mathematical symmetry, every Dominant 7th chord has a “twin brother.” We explain the Rule of Twins: how these chords share the same tension notes (the 3rd and the b7), allowing you to swap them seamlessly.
2. The Half-Step Slide (2-Sub-1)
We break down the transformation of a standard 2-5-1. Instead of jumping from G# to C# to F#, you will learn the chromatic walk-down:
- The Movement: G#m9 → G9 (#11) → F#maj9.
- The Result: A sophisticated, sliding bassline that feels modern and expensive.
3. Cheat Code: The Half-Step Above Rule
Stop doing complex math in your head. We give you the “MD Shortcut”: To find a Tritone Sub for any destination, simply go one half-step above your target and play a Dominant chord. It’s that simple.
4. Professional Voicings: The #11 Sound
A tritone sub doesn’t sound right if the voicing is “vanilla.” We show you how to build the perfect right-hand shapes to complement the substitution:
- The Right-Hand Hack: Play a major triad a tritone away from your bass note to create that “stinging” #11 tension.
- The “Nasty” 13th: Adding the 13th for that signature soulful rub.
5. Advanced Application: The “Nasty” 7-3-6
The 7-3-6 turnaround is the gold standard for transitioning to a relative minor. We show you how to upgrade the standard version in Db Major by replacing the 3-chord with a B13. Your bass will now walk down smoothly: C → B → Bb.
6. The 12-Key Practice Routine
The Tritone Sub is only a weapon if you can fire it in any key. We provide a structured drill to help you take the “Half-Step Slide” through all 12 keys until the chromatic movement becomes second nature.
Upgrade Your Turnarounds.
Stop playing predictable music. Give your progressions the professional “crunch” they deserve and start sliding into your resolutions.