Intervals & ColorsLevel 2 — Intervals & Colors
The Perfect Fifth (Blue)
Understand the perfect fifth — the most consonant interval after the octave.
Start Lesson in Chord8 →Instructions
- Set Level 2 on Guitar. Select C Major.
- Find the blue dots — those are Perfect 5th (P5) notes, 7 half steps above the root.
- Now select a Power Chord (C5). Only the root (red) and fifth (blue) remain.
- Power chords use just R + P5 — no third, so they sound neither major nor minor.
- The P5 appears in almost every chord type. It's the "glue" of harmony.
TIP
On guitar, locate the perfect fifth by counting seven frets or by using a familiar power-chord shape; account for the B-string tuning shift when crossing that string.