Introduction to Music Theory Chapter 3 – Scales and Keys Each chapter contains multiple topics. Once you complete a topic be sure you mark it completed and you’ll see green dots fill each topic below. Chapter Lessons 3.1 The C Major Scale 3.2 Other Major Scales 3.3 Diatonic Functions of the Scale 3.4 The Circle of Fifths 3.5 Major Key Signatures 3.6 The Natural Minor Scale 3.7 Harmonic and Melodic Minor Scales 3.8 Major or Minor? 3.9 Modes 3.10 Review ← Previous Lesson