Octapy is a CLI music calculator written in Python.

./octapy.py scale

-t --tonic default is C
Set the tonic to build the scale on, for example A E# Bb

-n --name default is major
For example: major, minor, melodic

-d --degree defaults to 1
Set the degree as an integer, 1 to 7

./octapy.py scale

-r --root default is C
Set the root note of the chord, for example A, E#, Bb

-n --name default is maj7
Set the name of the chord, examples: maj, m, m7, o, ø