Lesson 19 of 84 · Harmony
⭐ 30 XP🎼 Harmony HallModulation: Changing Keys
Harmonizing a melody starts with finding which chord tones the melody notes belong to.
🎯 Your mission
Two notes together — does it feel calm or tense?
⚡ The twist
If your ears think it sounds 'off' — that's the harmony asking to resolve.
Listen for this
🎧 When the chord changes, your mood changes. Notice when.
Artist Spotlight
🌟 Bach wrote so many harmonies he basically invented the rules everyone still uses.
Mind = Blown
🤯 The same chord can sound happy in one song and sad in another. The CONTEXT does it.
Learn about modulation: changing keys: construct major and minor triads
What You'll Learn
Harmonizing a melody starts with finding which chord tones the melody notes belong to. Then choose chords that contain those notes.
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.
Sing any note. Then sing one that goes WITH it. What does it feel like together?
For the dinner table
“Play one song together. Talk about what feeling it gave you and why.”
Next Smart Lesson
We'll pick a music lesson that matches exactly where your ear is right now.
Share this music lesson
Send it to a parent who wants 5 minutes of music with their kid — no instrument required.
Ready?
Modulation: Changing Keys
Two notes together — does it feel calm or tense?
Full screen — no distractions
Checkout complete lesson on Harmony for 7th Grade
Get the full Harmony track as a printable PDF — all lessons, worksheets, and answer keys.