Reference Library

Learn the Language of Music

Practical theory guides written for working musicians — no textbook jargon, just what you need to play better.

A Little Chord Theory

From triads to jazz voicings — intervals, inversions, seventh chords, common progressions, and the Nashville number system. Everything you need to understand how chords work.

Beginner–IntermediateGuitarTheory

A Little Scale Theory

Major, minor, pentatonic, blues, and modes explained for real humans. Learn which scales to use, when to use them, and how they connect to the chords you already know.

Beginner–IntermediateGuitarTheory

More guides coming soon — rhythm, ear training, songwriting, and more.