Lesson 75 of 84 · Harmony
⭐ 30 XP🎼 Harmony HallThe Circle of Fifths (Part 3)
Chord extensions (9ths, 11ths, 13ths) stack additional thirds above seventh chords, creating the lush sounds of jazz.
🎯 Your mission
Stack the sound. Find the sweet spot.
⚡ The twist
If your ears think it sounds 'off' — that's the harmony asking to resolve.
Listen for this
🎧 Listen for the SECOND voice underneath the main one.
Artist Spotlight
🌟 The Beatles' three-part harmonies were so tight they sounded like one voice.
Mind = Blown
🤯 Your brain can hear an out-of-tune note even if you've never had a music lesson.
Learn about the circle of fifths (part 3): construct major and minor triads
What You'll Learn
Chord extensions (9ths, 11ths, 13ths) stack additional thirds above seventh chords, creating the lush sounds of jazz.
Construct major and minor triads
Identify chord inversions by ear
Check Your Understanding
Question 1 of 3
What is the main difference between major and minor keys?
Where you hear this in real life
The reason songs make you feel things is harmony doing its quiet job underneath.
Stretch Challenge
Try this in real life this week.
Listen to any song. Try to hear the bass line.
For the dinner table
“Play one song together. Talk about what feeling it gave you and why.”
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The Circle of Fifths (Part 3)
Stack the sound. Find the sweet spot.
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