Intervalon 2D-Interval Explorer

Intervalon is a musical instrument software that works on a Windows PC/tablet, with touch interface support (Win32 desktop application).
It can be played by touch (best if you have a touch screen monitor or a tablet) / PC-keyboard keys (mappings flexible) / a mouse.
I have put many amazements into it, hopefully to be found and appreciated by you.
And It is subtitled 2D-Interval Explorer. What? 2D Interval?

The idea of 2D Interval

Intervalon is designed to be very true to it.


Getting started:

For further info see the text file included in the folder.

License of this software

Copyright © 2015 Kazuhiko Shirai.
Intervalon is freeware. It can be used anyway.
Redistribution is prohibited.


The software is provided as is without warranty of any kind.
Use it at your own risk. The author is not responsible for any loss or damage resulting from the use or misuse of it.

Meantone the author uses most often:

7/48-comma meantone.
It is just in between of Pythagorean Tuning (with pure 5th) and 2/7 Meantone which is in turn just in between of 1/4 Meantone (with pure Maj.3rd) and 1/3 Meantone (with pure Min.3rd).
   7/48 = ( (1/3 + 1/4) / 2 ) / 2     (This makes 5th 698.81867 cents, fairly near to 1/7 (=7/49) comma meantone.)
It has 5th/4th and 3rds/6ths equally less pure, supposedly making intervals 2D-ness most protected.  It is so sweet.
(N.B. here, Meantone is not a means to approximate Just-Intonation singing/playing.)
From the viewpoint, 12-tone equal temperament (as a kind of Meantone) has 5th too pure, and tends to single-dimensioned-ness too much.

the author's most favorite composers:

Palestrina, Alessandro Scarlatti,  Handel,
Beethoven, Muzio Clementi,
Brahms, Mahler, Manuel de Falla, Furtwängler

by Kazuhiko Shirai.   mail:
last updated 2016/10/27.