MusicThe ProfessorIntermediate
Harmonic Function: Pop, J-Pop, and K-Pop, a free music course on Tomo

Harmonic Function: Pop, J-Pop, and K-Pop

Explore how chords pull, push, and color musical keys across contemporary music. Learn how functional harmony, modal interchange, and voice leading create tension and release, then unpack the distinct chord palettes of Western radio, J-pop, and K-pop.

Like Duolingo, but for Harmonic Function: Pop, J-Pop, and K-Pop. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

25 levels across 3 sections, about 50 minutes end to end, roughly 10 days at five minutes a day. It moves through Mapping Harmonic Gravity; Regional Harmonic Dialects; and Voice Leading, Extensions, and Reharmonization. It assumes you already know the basics.

25 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Cadence the Cat, the guide who teaches the Harmonic Function: Pop, J-Pop, and K-Pop course
Harmonic Function: Pop, J-Pop, and K-Pop
with Cadence the Cat
25
Levels
3
Sections
5
Min/day
What you'll learn

Key ideas in Harmonic Function: Pop, J-Pop, and K-Pop

  • Chords derive musical energy from their relational roles rather than fixed shapes
  • The tonic anchors a progression with stability and closure
  • The dominant generates active unrest that seeks the tonic
  • The interval between scale degrees 4 and 7 forms an unstable tritone
  • Degree 7 pulls up a half-step to 1, while degree 4 resolves down to 3
  • This dual half-step motion gives dominant-seventh chords their resolution pull
  • Subdominant chords act as open runways toward dominant tension
  • Subdominant chords can resolve gently back to the tonic as a plagal cadence
  • Subdominant harmony creates directional motion without the urgency of a dominant
  • The vi and iii chords share two common tones with the tonic triad
  • A vi chord provides tonic stability while softening absolute closure
  • Chords in the same functional family share guide tones and directional drive
  • Substituting ii for IV preserves predominant motion while adding minor color
  • Family swaps alter mood without disrupting the harmonic roadmap
  • A V–vi resolution forms a deceptive cadence that extends the musical thought
  • A secondary dominant is a major triad or dominant 7th built a perfect fifth above your target chord.
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Harmonic Function: Pop, J-Pop, and K-Pop the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Mapping Tension and Harmonic Gravity

What functional feeling does the tonic chord bring to a progression?

Get it right to open this lesson and 24 more in the app.

Course map

How to learn Harmonic Function: Pop, J-Pop, and K-Pop, step by step

Go in order. 25 short levels across 3 sections, about 50 minutes in all, five minutes a day.

  1. 1

    Mapping Harmonic Gravity

    • Steering Chord Energy: Tonic, Subdominant, and Dominant
    • Generating Momentum with Secondary Dominants
    • Borrowing Colors Through Modal Interchange
  2. 2

    Regional Harmonic Dialects

    • The Western Pop Engine: Four-Chord Loops and Groove
    • The J-Pop and Anime Idiom: Royal Roads and Intricate Motion
    • The K-Pop Harmonic Synthesis: Modular Shifts and R&B Fusion
  3. 3

    Voice Leading, Extensions, and Reharmonization

    • Melody Meets Harmony: Tensions and Upper Extensions
    • Chord Substitution and Reharmonization

3 sections · 8 units · 25 levels. Built to play, not to enroll.

Questions

Questions about Harmonic Function: Pop, J-Pop, and K-Pop

  1. How do I learn Harmonic Function: Pop, J-Pop, and K-Pop?

    Go in order: start with Mapping Harmonic Gravity, then Regional Harmonic Dialects, then Voice Leading, Extensions, and Reharmonization. On Tomo that's 25 short levels, about 50 minutes in all, played five minutes a day. Start free and play the first level in under a minute.

  2. Is there a Duolingo-style app for Harmonic Function: Pop, J-Pop, and K-Pop?

    Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Harmonic Function: Pop, J-Pop, and K-Pop is one of its free courses, and you can type any other topic to get a course of your own.

  3. Is the Harmonic Function: Pop, J-Pop, and K-Pop course free?

    Yes. Harmonic Function: Pop, J-Pop, and K-Pop is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.

  4. How long does it take to learn Harmonic Function: Pop, J-Pop, and K-Pop?

    25 levels across 3 sections, about 50 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.

  5. Do I need any background to start Harmonic Function: Pop, J-Pop, and K-Pop?

    No. It's pitched at an intermediate level, so it starts where you are and builds up. If you can tap a phone, you can start.

New

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How it's taught

You pick the voice

This course
The Professor

Harmonic Function: Pop, J-Pop, and K-Pop is taught in the Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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Start free

Start Harmonic Function: Pop, J-Pop, and K-Pop today.

Download Tomo, search Harmonic Function: Pop, J-Pop, and K-Pop, and play your first lesson in under a minute.