Inspired by https://deftdigits.com/tools/capo-calculator/.
This tool takes in a set of chords and returns possible capo positions for a guitar to play those chords. This is useful for working around troublesome chords or if you're transcribing.
Simply run the script and pass in the chords:
$ ./capo_calc.py A Bm C
Input: A, Bm, C
Capo 2: G, Am, Bb
Capo 7: D, Em, F
Capo 0: A, Bm, C
Currently supports the following chords (possibly more to come):
| C | Db | D | Eb | E | F | Gb | G | Ab | A | Bb | B |
| Cm | Dbm | Dm | Ebm | Em | Fm | Gbm | Gm | Abm | Am | Bbm | Bm |
| C7 | Db7 | D7 | Eb7 | E7 | F7 | Gb7 | G7 | Ab7 | A7 | Bb7 | B7 |