Introducing the Harmonic 7th Chord

If you want to experience Just Intonation first hand then please visit the Online Terpstra Keyboard and experiment for yourself.  This was originally created by James Fenn.  I have added a few additions and will continue to build upon his wonderful work.  You can even use this on an iPad or tablet of your choice in …

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The Janko Keyboard

Janko Keyboard What a great idea the Janko Keyboard is.  In 1882 Paul von Jank√≥ designed this marvelous instrument. But sadly it never took off.   There are some brave ingenious people who are endeavoring in bringing this wonderful instrument back to life and to the forefront for others to play and be creative with. …

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