Interactive Demo
Secondary Function Transmuter
Secondary Function Transmuter is a free, interactive learning demo from the AP Music Theory course on Lykke. It helps you build intuition for Secondary Dominants (V/V, V/ii, etc.), Secondary Leading-Tone Chords, Tonicization, Chromaticism in Voice Leading. Play with it directly in your browser — it features 2 buttons. This demo lives in the “Unit 7: Harmony and Voice Leading IV: Secondary Function” section of the course.
How to use this demo
- Use the “V / x”, “V7 / x” buttons to trigger actions or reset the demo.
- Experiment freely — there's nothing to break, and every change is reversible.
What you'll explore
- Secondary Dominants (V/V, V/ii, etc.)
- Secondary Leading-Tone Chords
- Tonicization
- Chromaticism in Voice Leading
- Analysis of Chromatic Scores
Frequently asked questions
What does the Secondary Function Transmuter demo do?
This creates a temporary "local" dominant-to-tonic pull. Secondary Function Transmuter lets you explore this hands-on instead of only reading about it.
What AP Music Theory concept does Secondary Function Transmuter teach?
This unit introduces chromatic harmony, specifically secondary dominants and secondary leading-tone chords, which allow for temporary shifts in tonal center. It focuses on Secondary Dominants (V/V, V/ii, etc.), Secondary Leading-Tone Chords, Tonicization, Chromaticism in Voice Leading, Analysis of Chromatic Scores from the “Unit 7: Harmony and Voice Leading IV: Secondary Function” section.
What can I control in Secondary Function Transmuter?
The “V / x”, “V7 / x” buttons run actions or reset the demo. Every change updates the visualization in real time, so you can see exactly how each variable affects the outcome.
How does Secondary Function Transmuter fit into the AP Music Theory course?
AP Music Theory is an introductory college-level course that develops students' understanding of music through the analysis of performed and notated works. The curriculum integrates written theory with aural skills, cov… This demo is the interactive piece for the “Unit 7: Harmony and Voice Leading IV: Secondary Function” section. Open the full AP Music Theory course wiki at https://www.getlykke.com/explore/public/ap-music-theory-64526a5a-2b9d-4c74-956a-c2957679aa84 for notes, flashcards, quizzes and the other demos.
What will I understand better after using Secondary Function Transmuter?
You'll build intuition for Secondary Dominants (V/V, V/ii, etc.), Secondary Leading-Tone Chords, Tonicization, Chromaticism in Voice Leading, Analysis of Chromatic Scores — and, crucially, see how they behave when you change the inputs, which is hard to get from a textbook or lecture on AP Music Theory alone.
From the AP Music Theory course
This interactive demo is part of the Unit 7: Harmony and Voice Leading IV: Secondary Function section. Explore the full AP Music Theory course wiki on Lykke — with notes, flashcards, quizzes and more interactive demos.
Open the AP Music Theory course →