capo 0.2

Capo: A Python Library for Guitar Chord Transposition

Capo: A Python Library for Guitar Chord Transposition

Overview

Capo is a lightweight Python library for guitarists and developers that provides precise chord transposition across capo positions. It allows users to easily convert chord progressions from one capo setting to another, supporting sharps, flats, complex chord types, and slash chords. Whether you’re building a songwriting assistant, a practice tool, or a music theory application, Capo delivers a clear, reliable foundation for working with chord mappings and capo calculations in Python.

PyPI Counter
Github Stars

Branch	main	dev
CI

Code Quality

Installation

Source Code

• Download Version 0.2 or Latest Source
• pip install .

PyPI

• Check Python Packaging User Guide
• pip install capo==0.2

Usage

Capo Map

>>> from capo import capo_map
>>> capo_map(["A", "Em", "C", "G"], target_capo=2, current_capo=0)
['G', 'Dm', 'A#', 'F']
>>> capo_map(["A", "Em", "C", "G"], target_capo=2, current_capo=0, flat_mode=True)
['G', 'Dm', 'Bb', 'F']

Transpose

>>> from capo import transpose
>>> transpose(["A", "E", "Cm", "G", "Fmaj7"], semitones=3)
['C', 'G', 'D#m', 'A#', 'G#maj7']
>>> transpose(["A", "E", "Cm", "G", "Fmaj7"], semitones=3, flat_mode=True)
['C', 'G', 'Ebm', 'Bb', 'Abmaj7']

Issues & Bug Reports

Just fill an issue and describe it. We'll check it ASAP!

• Please complete the issue template

References

1- Guitar chords capo calculator - GuitarPlayerBox

2- Enharmonic Equivalents - Music Theory Academy

3- Capo Calculator

4- Chord Transposer: Online Tool to Transpose Chords

Show Your Support

Star This Repo

Give a ⭐️ if this project helped you!

Donate to Our Project

Bitcoin

1KtNLEEeUbTEK9PdN6Ya3ZAKXaqoKUuxCy

Ethereum

0xcD4Db18B6664A9662123D4307B074aE968535388

Litecoin

Ldnz5gMcEeV8BAdsyf8FstWDC6uyYR6pgZ

Doge

DDUnKpFQbBqLpFVZ9DfuVysBdr249HxVDh

Tron

TCZxzPZLcJHr2qR3uPUB1tXB6L3FDSSAx7

Ripple

rN7ZuRG7HDGHR5nof8nu5LrsbmSB61V1qq

Binance Coin

bnb1zglwcf0ac3d0s2f6ck5kgwvcru4tlctt4p5qef

Tether

0xcD4Db18B6664A9662123D4307B074aE968535388

Dash

Xd3Yn2qZJ7VE8nbKw2fS98aLxR5M6WUU3s

Stellar

GALPOLPISRHIYHLQER2TLJRGUSZH52RYDK6C3HIU4PSMNAV65Q36EGNL

Zilliqa

zil1knmz8zj88cf0exr2ry7nav9elehxfcgqu3c5e5

Coffeete

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

0.2 - 2025-11-15

Added

• transpose function
• Logo

Changed

• README.md updated
• capo_map function modified
• Test system modified

0.1 - 2025-11-05

Added

• capo_map function
• Flat notes
• Sharp notes