https://github.com/davidparsson/transposer

A python script transposing chords from one key to another.
https://github.com/davidparsson/transposer

music python sheet-music transpose-chords

Last synced: 5 months ago
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A python script transposing chords from one key to another.

• Host: GitHub
• URL: https://github.com/davidparsson/transposer
• Owner: davidparsson
• Created: 2011-08-21T17:57:16.000Z (almost 14 years ago)
• Default Branch: master
• Last Pushed: 2024-05-01T11:44:34.000Z (about 1 year ago)
• Last Synced: 2024-12-15T23:34:05.595Z (5 months ago)
• Topics: music, python, sheet-music, transpose-chords
• Language: Python
• Homepage:
• Size: 11.7 KB
• Stars: 19
• Watchers: 5
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Transposer 

==========

[![Build Status](https://github.com/davidparsson/transposer/workflows/CI/badge.svg)](https://github.com/davidparsson/transposer/actions?query=workflow%3ACI)

Transposing chords from one key to another

Usage

-----

To transpose chords, use transposer like this:

    python transposer.py --from=F# --to=Eb input.txt

Input files

-----------

The input file should be a plain text file, but can contain any text - only lines starting with a vertical bar (`|`) will be transposed. On these lines, root notes must be in upper case while everything else should be in lower case.

Example

-------

The contents of `example.txt`:

    Rocking start, jazzy ending

    | D | G A | Bbm7#11/Db |

Using `transposer --from=D --to=E example.txt` will produce the result

    Result (D -> E):

    Rocking start, jazzy ending

    | E | A B | Cm7#11/D# |

Testing

-------

Run unit tests using Python's doctest:

    python -m doctest -v transposer.py