instrument.games
Preparing questions…

About Harmonic Intervals

Two notes at once — hear the blend, not the motion.

Part of Ear Training on instrument.games. It runs in the browser, scores every run, and needs no account to play.

How to approach it

  • Harmonic intervals read as texture: seconds rub, thirds glow, fifths ring hollow, octaves disappear.

More Ear Training levels

Ascending Basics

Steps, skips, and perfect intervals moving upward.

Descending Basics

The same core intervals, heard falling instead of rising.

Major vs Minor Triads

The two workhorse chord qualities, blocked and arpeggiated.

Color Chords

All four triad qualities, including the unstable ones.

Mixed Advanced

Every interval, both directions, melodic and harmonic.

Seventh Chords

The three sevenths that carry most tonal music.

Altered Sevenths

All five sevenths, including the two that pull hardest.

Triad Inversions

Same three notes, different note underneath them.

Level by Demo Maestro · Published July 31, 2026