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Understanding Intervals

The foundation of music theory

Learn all musical intervals — from seconds to thirteenths. Understand how chords are built from the ground up.

Beginner 0%

Thirds & Tritone

Mod. 1 0%

  1. ○ Major & Minor 3rd Major vs. minor — the defining difference
  2. ○ The Tritone 6 semitones — the tension in dominant chords

Fifths & Sixths

Mod. 2 0%

  1. ○ The Perfect 5th 7 semitones — stable and open
  2. ○ Diminished & Augmented 5th ♭5 and ♯5 — the color tones
  3. ○ The Major 6th 9 semitones — warmth and openness

Sevenths

Mod. 3 0%

  1. ○ The Minor 7th 10 semitones — blues & dominant sound
  2. ○ The Major 7th 11 semitones — bright and modern

Extended Intervals

Mod. 4 0%

  1. ○ The 9th 14 semitones — color above the octave
  2. ○ 11th & 13th The upper extensions