Stack notes into chords — hear happy sounds and sad sounds!
Pick a chord!
🎧 Tap notes below to play
Choose Instrument
Chord Presets
Notes (tap to add to chord)
Listen and guess: Happy or Sad?
Score: 0
🎶 Harmony Lab
A chord is 3+ notes played together — they can sound happy or sad!
1Tap notes to hear them alone and stacked
2Try chord presets — Major 😊 vs Minor 😢
3Use Chord Builder to see how chords are made
4Take the Chord Quiz — can you hear happy vs sad?
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Harmony Master!
🎵 You discovered: HARMONY — when 3 or more notes ring out together, they make a chord! Major chords sound happy 😊, minor chords sound sad 😢. Every song you love is built from chords!