That sounds like Fibonacci coding [1] to me: you can express anything up to -13 semitones with just two fingers. [1] https://en.wikipedia.org/wiki/Fibonacci_co

That sounds like Fibonacci coding [1] to me: you can express anything up to -13 semitones with just two fingers. [1] https://en.wikipedia.org/wiki/Fibonacci_coding https://en.wikipedia.org/wiki/Fibonacci_coding