A Passion for Music Theory: The Solfege Matrix

How I hack music theory/solfege and learn to play saxophone in 4months from scratch!

The Sight-Singing Matrix — Andrei Strizek

Music Theory Comprehensive: Part 2 - Chords, Scales, & Keys, Jason Allen

For Beginners Books Music Theory For Beginners

Bridging the Music Theory Gap

Basic Music Theory Posters Solfege, Note Values, Pitch, Musical Terms and Elements, Key Signatures, Piano

IJERPH, Free Full-Text

Music Classes Ace Center Study/ Ace Academy — ACE Learning Center

Understanding Solfege: A Musical Guide To Tonal Relationships