Tonality Visualizer
See tonality in real time
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Free
Rating summary
About
Tonality Visualizer is an interactive polar-pitch map that displays musical notes on a rotating disk.
You can connect a MIDI keyboard or open a MIDI file — every note appears in real time.
The app helps you see harmony, motion, and chord relationships, even without formal music theory.
Main Features
•MIDI Input: visualize notes directly from your keyboard or MIDI device.
•MIDI File Playback / Trainer Mode: play or practice chord by chord.
•Live Sound Option: enable/disable the built-in synth for input playback.
•Physics-based Disk Rotation: the disk moves naturally according to musical torque.
•Simple UI: switch between water-fixed / disk-fixed anchors, toggle UI visibility, bilingual JP/EN.
Perfect for music learners, creators, and anyone who wants to “see” sound.
Privacy
No data collection. All processing happens locally on your device.
License
Open-source under the MIT License. Source code available on GitHub.
Supported Formats
•.mid / .midi files (Format 0 / 1)
•CoreMIDI device input
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What's New in Tonality Visualizer
1.6.2
September 26, 2026
• Added ASTRAL TRIAL, a practice game for learning note positions and intervals on the disk, with 48 stages and an infinite-HP practice mode. • Added sung movable-do solfège. Enable it in Settings to hear the syllables (off by default). • Increased the disk’s default weight for steadier movement. • Localized game instructions, mission text, and launch and defeat messages into six languages. • Added offline access to the privacy policy and licenses in Settings. • Improved memory management and stability.
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