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By Pi

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* A magical illusion to the ears
* A new polyphonic musical instrument
* A new method for acquiring perfect pitch
* The foundation for a new way of conceptualising music

- - - What is a ChromaTone? - - -
There are 12 ChromaTones. Each ChromaTone is a Shepard Tone corresponding to one of the 12 pitch classes found on a modern (ie 12-TET tuning) piano / guitar /etc. Chroma is the Greek for colour. You will find any piece of music can be played using only these 12 colours -- and you will recognise it instantly.

- - - What is the illusion? - - -
Keep walking round the circle. Each note is clearly a semitone higher than the previous. yet after you have completed 1, 10 or 100 circles you realise the sound of each ChromaTone is constant.

- - - How does this help learning perfect pitch? - - -
I'm fortunate to know someone with perfect pitch. Through talking with him I discovered that when here's a note he hears primarily the pitch class, or Chroma; he resolves the note into one of these 12 pitch classes and hears the 'chroma' of the note. As a secondary movement of the brain he figures out where on the piano this note is.

The Shepard Tone is a perfect representation of the concept of pitch class. It has not been possible until the digital era. This is the cutting edge of music evolution.

Of course it is going to take more than this representation to acquire perfect pitch. I am currently developing a set of training games that use this framework. Check out the web link!

- - - Why have you given a new letter to each note? - - -
This is not the question. The question is: why was this not done 400 years ago when the modern 12 tone chromatic scale was conceived? This is the first of many public offerings from me... if life gives me the grace to continue my work, I'm going to build a complete musical system from this basis as well as a set of training tools. click on the ' support URL ' and look on my 'Toneme System' if you are interested in this work.


PS I'm amazed to see I have one one-star review from the US store, someone is angry. I have worked long and hard to create something beautiful and I am giving it away for free. and this seems to have infuriated someone?! The psychology of some people beggars belief! I am not claiming any invention that is not my own. The Shepard Tone speaks for itself. One has only to put 'Shepard Tone' into Google. And I have clearly mentioned both here and in the application itself that I am using Shepard Tones?! And on my website I address all of the issues related to the various tuning systems that have evolved through history. I specifically say in the application FAQ ' this topic is too big to go here, if you are interested, go to my website or contact me! '.


iPhone Screenshot 1
iPad Screenshot 1

Customer Reviews

Absolutely amazing.

This App is just mind blowing. I am a music student and play several different instruments, and compose as well. While I have had this app only for a short while now, I am still blown away. But before I describe the music part, I want to just say it's just beautiful. The interface, colors, crispness, gold borders around the notes, how they expand beautifully when played, the soothing and beautiful sounds, and of course the magic of how can these sounds and octaves even work at all, like staring at an Escher drawing and trying to figure out how it can exist.
But as far as being benefitted musically, I think it's one of the better apps actually for developing relative pitch first off, with perfect pitch being developed as well later on, and if nothing else it's a superior interface to "seeing" and playing music.
I can totally envision an advanced future culture playing music on a platform like this. It's just...superior.
Many thanks to this dev, not only for just this app but also his other amazing apps I have downloaded.

Brain candy

I'm a violinist and I was like a cat with a new toy with this app... I was mind blown before I read this and figured out that each one is all frequencies of the note. But I didn't know what it was for at the time. I actually lost this app and forgot about it when I had to completely erase my ipod when it glitched, but I was just playing my violin and discovered that pitches were less frustrating and more recognizable when played in octaves... It took away the relative pitches screwing up the next note when I played the same note from two different octaves and it suddenly reminded me of this app and suddenly I understood the brilliance of this thing. Thanks so much! And ignore the rude know-it-alls!

Robert Shepard !!!

Stop claiming you came up with this wonderful new idea when the guy who invented the shepards tone is still alive and won international science awards in physics and social sciences, go visit him at Stanford. Your responses to the questions are uneducated, no response to the thousands of temperament out there, or the actual science of combining frequencies for an audible allusion. Adding color to this? People started doing this to harpsichords in the 17th century, go read the first few chapters in Newton's Optiks, he puts light frequency to tone frequency. Or the 4 organs made to produce tone-light in between 1850 and 1930. Please educate yourself before trying to educate others :)

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This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Released:
  • Version: 1.0
  • Size: 7.0 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 3.2 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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