Flashcards-for-the-major-system
Here's a description of the major system: https://en.wikipedia.org/wiki/Mnemonic_major_system. I created this program to help me memorize it.
Examples:
$ python main.py
40 > rs
72 > kgn
$ python main.py 2 front
76 > kgshch
71 > kgtd
$ python main.py 2 back
gm > 73
rl > 45
This app is still under development, it's very simple and, at present, rather clunky.