naïve backpropagation, laziness and chord roots

The rolling-down-a-hill of backpropagation with gradient descent has proven enormously powerful. The process of identifying chords in a ternary harmony system is curiously similar, though the loss function is far more naïve and transparent. Instead of using derivatives, the algorithm simply derives the smallest earth-moving distance, at bit level. It’s rather prosaic. But what this […]