Hear and play music in just intonation - independent of the key.

"Monteverdi" is a microtonal sampler that allows you to hear and play music in just intonation and other temperaments - independent of the musical key. The App is designed for choirs to improve their intonation.
For best use connect your Midi keyboard via OTG-cable. Depending on the actual harmony a special algorithm computes instantly the optimal tune, playing music in just intonation in all keys. However you can also use the inbuilt sampler and on-screen keyboard to test the app.

What’s New

Version 2018.09.01

This app has been updated by Apple to display the Apple Watch app icon.

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, Haye Hinrichsen, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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