Parallel Fifths

The perfect fifth is the strongest consonance after the octave. When two voices move in parallel fifths, the result is a powerful, open sound that's been central to harmony for centuries. Medieval organum, power chords, and countless folk traditions all rely on this interval.

This exercise trains your ear to lock onto that fifth interval and maintain it through stepwise motion. The backdrop moves through 1-2-3-2-1, and you shadow it a fifth above: 5-6-7-6-5.

Actionable Step: Parallel Fifths

1. The Sound

Use an "Oo" vowel with tall, narrow lips. This darker, more focused vowel minimizes harmonic complexity and lets the acoustic relationship between the voices ring clearly. Think of the vowel in "moon" rather than "book."

2. The Feel

When you're locked in, fifths produce a distinctive sensation of power and openness. Unlike thirds, which can feel intimate and warm, fifths feel spacious and resonant. The 3:2 frequency ratio creates strong reinforcement. If you're tuned correctly, you'll feel the resonance increase and the effort decrease.

3. The Drill

The backdrop plays scale degrees 1-2-3-2-1 with a half note start and dotted half ending. You sing 5-6-7-6-5 in parallel.

Backdrop (what you hear):

Your part (what you sing):

Move in perfect sync with the backdrop. When it goes up, you go up. When it comes down, you come down. Think of your voice as magnetically connected to the melody at exactly a fifth's distance.

Practice with Vocal Driller

Using the Fader

Start with the fader toward your harmony part so you can clearly hear what you're supposed to sing. As you get more confident, gradually move the fader toward the melody. The ultimate goal is to hold your harmony part steady even when the backdrop is louder than your guide track.

The open quality of fifths makes them easier to hear independently than thirds. Use this to your advantage: even with the fader shifted toward melody, the fifth should remain distinct in your ear.