Harmonizer
Music
Free · Designed for iPad. Not verified for macOS.
iPad
Explore music through color and touch. Play notes and chords, see how pitches connect, and sing to highlight your pitch on Harmonizer’s colorful grid.
See and hear how music fits together.
Harmonizer turns musical relationships into a colorful, interactive grid. Tap a hexagon to hear a note, or tap the triangle between three notes to play a major or minor chord. Sing or play a single note on an instrument, and watch the detected pitch light up.
EXPLORE NOTES AND CHORDS
Discover how neighboring notes connect through perfect fifths, major thirds, and minor thirds. Major and minor chords form triangles, making harmony something you can see, hear, and explore with your fingers.
SEE YOUR VOICE
Use the microphone to highlight the pitch you sing or play. Listen to a note, try matching it with your voice, and explore the connection between sound and color.
CHOOSE YOUR LABELS
Show note names or Movable Do syllables, with your choice of tonic. Keep labels visible, show them only when notes are active, or hide them to focus on the colors and sounds.
EXPLORE YOUR WAY
Choose from playing, pitch detection, or a mode that listens when you stop playing. Adjust the grid size to suit your screen and how you like to interact.
HEAR HARMONY DIFFERENTLY
Harmonizer uses Shepard tones—layered sounds that emphasize a note’s identity without a distinct octave. Every hexagon with the same note name produces the same sound.
For curious beginners, students, teachers, and musicians, Harmonizer offers a hands-on way to explore pitch, chords, and musical patterns. No music theory knowledge is needed to start: touch a note and listen.
Pitch detection requires microphone access.
- Updated for newest version of ipadOS
- Note labels
- Moveable do
- Settings
The developer, Matthew McLaughlin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Matthew McLaughlin
- Size
- 2.6 MB
- Category
- Music
- Compatibility
Requires iPadOS 17.0 or later.
- iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPad
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2010 Stephen Malinowski 2026 Matthew McLaughlin