Added methods to reduce spectrum bin to 12 notes per octave and to scale
2d array so that each column is within [0,1] range.
Detect major and minor chords in the constructor taking Note... and
assign corresponding shorthand.
A method to get the chord at given timestamp sounding at least DELTA
seconds after that timestamp was added.
Fix for an error in normalize (missing Math.abs)
Unit tests for new methods
Updated .gitignore and list.py
The modifications needed to handle Tonnetz representation of spectrum
features: tonnetz chord templates, comparison with templates,
refactoring.
Classes needed to interact with stacked denoising autoencoder and other
deep learning algorithms written in Python, and those .py files
themselves.