Bridge Theory -

Connect Understanding and Harmony

See the fretboard through function, not position.

Theory transforms how you understand the guitar.

Instead of memorizing shapes, you’ll explore how chords, scales, and triads connect to form musical logic.

Through the FDA (Functional Diagonal Approach), you’ll finally make sense of the fretboard — horizontally, vertically, and harmonically.

Learn to think like a musician, not just a guitarist.

Bridge: Theory - Major Scale & Modes
$59.00
One time

Stop memorizing block scales — start understanding the logic behind them. Guitar has its same-repeatable-octave structure, which already unlocked by Django Reinhardt and Wes Montgomery. Each VoiceLid Theory module gives you the why behind what you play, turning the fretboard into a connected, functional map.

✓ 1-Hour Focused Theory Session
✓ Fretboard diagrams + PDF summary
✓ Wes Montgomery-inspired examples
✓ Direct link to the matching Monthly Practice Plan
Bridge: Theory - Shell + Drop 2
$59.00
One time

**Shell Voicing + Drop 2 Theory** Learn how to build rich, flexible jazz harmony by simplifying complex chords into clear, functional shapes. Understand how shell voicing and drop-2 structures connect across the fretboard — the foundation of true voice leading. Each VoiceLid Theory module gives you the why behind what you play, turning the fretboard into a connected, functional map.

✓ 1-Hour focused theory session
✓ Fretboard diagrams + PDF summary
✓ Wes Montgomery-inspired examples
✓ Direct link to the matching Monthly Practice Plan
Bridge: Theory Bundle
$149.00
One time

All three Bridge: Theory courses — Scale, Shell + Drop 2, and Triad. The complete harmonic vocabulary of the FDA system. Includes 60 days of full access to The FDA Routine app — all 12 keys, the modes and every string set.

✓ Chords, scales, triads — one connected system
✓ Shell + Drop 2: core of every voicing
✓ Know why each voicing sounds the way it does
✓ Save $28 vs. buying all three separately
✓ One purchase — full harmonic foundation
Bridge: Theory - Triad
$59.00
One time

Master the hidden logic of triads and how they move through keys. Learn to cycle triads across the fretboard for smooth voice leading, modern comping, and melodic solo construction. Each VoiceLid Theory module gives you the why behind what you play, turning the fretboard into a connected, functional map.

✓ 1-Hour Focused Theory Session
✓ Fretboard diagrams + PDF summary
✓ Wes Montgomery-inspired examples
✓ Direct link to the matching Monthly Practice Plan

Both

Bridge: Theory

and

Bridge: Sound

share the same foundation

Three interconnected pillars of harmony: Scales & Modes, Shell + Drop 2Voicings, and Triads.

Theory helps you understand how they work; Sound helps you hear and feel them.

Together, they form one continuous bridge between knowledge and expression.

  • • Bridge: Theory:

    Understand how scales create harmonic direction and modal color.

    Learn to see the fretboard diagonally — function, not just position.

    • Bridge: Sound:

    Train your ear to recognize modal function through melodic exercises in all 12 keys.

    Practice diagonal motion until the fretboard feels unified.

    💡 Theory gives you direction. Sound gives you instinct.

  • • Bridge: Theory:

    Explore vertical harmony — how upper structures define tonal hierarchy.

    Learn to voice chords efficiently across the neck.

    • Bridge: Sound:

    Internalize comping movement through ear-led repetition and chord-tone voice-leading drills.

    Focus on hearing how upper notes move, not just playing shapes.

    💡 Theory builds structure. Sound gives it motion.

  • • Bridge: Theory:

    Discover how triads create linear voice movement between chords.

    Learn the logic behind harmonic flow — II–V–I, diminished passing, and substitutions.

    • Bridge: Sound:

    Apply triad voice-leading through 10-minute horizontal motion routines.

    Practice connecting chord tones by ear, so lines emerge naturally.

    💡 Theory connects harmony. Sound connects your hands and ears.