MultiTuneKeys is made and published by Yasuhiro Misawa. AppBrain is an independent app data site and isn't affiliated with Yasuhiro Misawa. The app name, icon, screenshots and description belong to Yasuhiro Misawa and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- June 17, 2026
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Releases
Updates seen on the App Store- Version
- 1.1.1
- Launched
- May 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 5.57 MB
- Content rating
- Everyone
Technologies used by MultiTuneKeys
About the app and developer
About MultiTuneKeys
MultiTuneKeys is a music app developed by Yasuhiro Misawa.
User Ratings
The app has no ratings yet.
App Information
MultiTuneKeys is freely available from the App Store. The app size is 5.57 MB. The latest version available is 1.1.1. The last update was on June 17, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2026.
Developer information for Yasuhiro Misawa
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Frequently asked questions about MultiTuneKeys
Is MultiTuneKeys free?
Yes. MultiTuneKeys is free on the App Store.
Is MultiTuneKeys still available?
Yes. MultiTuneKeys is on the App Store, and the last update we saw was on June 17, 2026.
How large is MultiTuneKeys?
MultiTuneKeys is 5.57 MB.
Is MultiTuneKeys suitable for children?
App Store rates the content of MultiTuneKeys as suitable for everyone.
Who made MultiTuneKeys?
MultiTuneKeys was developed by Yasuhiro Misawa. It is listed in the music category on the App Store.
What are the best alternatives to MultiTuneKeys?
People looking at MultiTuneKeys also look at these music apps: 24-TET Keys: Microtonal MIDI, Rubberband: Microtonal Synth, Particle Music, Harmony Ring, MetroNova.
Store listing
By Yasuhiro Misawa, from the App Store
Description by Yasuhiro Misawa Written by the developer, not by AppBrain. Click to read.
A piano keyboard app you can play with a touch. Enjoy it casually, or switch between 7 different tuning systems to hear the differences.
Note: This app does not include piano sound. To make tuning differences clearly audible, it uses 4 simple waveforms (sine, triangle, square, sawtooth — sine and triangle include harmonics control).
Whether you want to play casually in equal temperament, or explore historical tunings like Just Intonation or Pythagorean — from a curious starting point to deep musical study, all in one app.
■ 7 Temperaments
• Equal Temperament (12-TET)
• Just Intonation
• Pythagorean
• 1/4-comma Meantone
• Werckmeister III
• Kirnberger III
• Custom Tuning — fine-tune each note in 1-cent steps within a ±100 cent range
■ Custom Tuning Editor
• 12 vertical sliders aligned with the keyboard
• Set a base note and tune intervals by ear
• Save up to 3 user presets
• Templates: load Just, Pythagorean, Meantone, Werckmeister, or Kirnberger as a starting point
• Real-time audio feedback while adjusting (held notes follow slider changes)
■ HOLD (Sustain) — perfect for pitch reference
• Sustained notes keep ringing after you lift your finger
• Tap a held key again to release just that note
• Great for practicing intonation against a chosen tuning while playing your own instrument
■ Anchor Mode
• A=440 (default): keep A fixed at the reference pitch — historically authentic, ensemble-friendly
• Tonic: keep the tonic at its equal-tempered pitch and let A drift — useful for comparing the same tonic across different tunings
■ Performance Features
• Pitch bend wheel with adjustable range (±1 to ±12 semitones)
• 4 waveforms: Sine, Triangle, Square, Sawtooth
• Harmonics control for Sine and Triangle
• Adjustable master volume
• Reference pitch: A=415 / 432 / 440 / 441 / 442 / 443 Hz or custom
• Haptic feedback on key press
• Loudness curve adjustment per waveform
■ For Musicians & Educators
• Hear the difference between tuning systems instantly
• Perfect for teaching music theory and acoustics
• Compare pure intervals in Just Intonation with Equal Temperament
• Explore historical temperaments used in Baroque and Renaissance music
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