lschwetlick

# The code for my article with the same name. You can find it at the URL below:
# https://www.mvanga.com/blog/basic-music-theory-in-200-lines-of-python

# MIT License
# 
# Copyright (c) 2021 Manohar Vanga
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights