First of all you need to generate pi numbers, the generate_pi.py script will be for you (inside src/ folder).
USAGE: generate_pi.py ndigits outfile
After that, you can generate score from pi number based on your favourite key. Inside config/ folder you can find key.json file, fill it in by entering your key. Launch generate_sheet.py script in order to generate PDF and MIDI file (in folder res/pfd/ and res/midi/ respectively).
USAGE: generate_score.py filename score
you can choose to generate the score by adding 0 in the last parameter, otherwise 1 if you want the tablature.
you only need Lilypond installed on your system to get these scripts to work.