https://github.com/ekzhang/harmony

🎶 Generate four-part harmony following idiomatic voice-leading procedures with DP!
https://github.com/ekzhang/harmony

chorale dynamic-programming harmony music-generation procedural-generation voice-leading

Last synced: about 1 month ago
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🎶 Generate four-part harmony following idiomatic voice-leading procedures with DP!

• Host: GitHub
• URL: https://github.com/ekzhang/harmony
• Owner: ekzhang
• License: bsd-3-clause
• Created: 2018-12-29T02:48:25.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2022-12-27T17:58:31.000Z (over 1 year ago)
• Last Synced: 2024-05-02T00:54:10.616Z (5 months ago)
• Topics: chorale, dynamic-programming, harmony, music-generation, procedural-generation, voice-leading
• Language: Python
• Homepage: https://autoharmony.herokuapp.com
• Size: 102 KB
• Stars: 44
• Watchers: 6
• Forks: 5
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# Harmony

Generate four-part harmony following idiomatic voice-leading procedures with DP!

```python

>>> voiceProgression('B-', 'I I6 IV V43/ii ii V V7 I')

```

![Four-part harmony](https://i.imgur.com/9bl7V5t.png)

See the web interface at [autoharmony.herokuapp.com](https://autoharmony.herokuapp.com/). This was built with [Music21](https://github.com/cuthbertLab/music21).

## Usage

First, install and activate dependencies managed by [Pipenv](https://github.com/pypa/pipenv).

```shell

$ pipenv install

$ pipenv shell

```

To generate a chorale:

```shell

$ python voicing.py

```

Then, create a fresh Postgres database. Tables will be created on first application run. To launch the development web server:

```shell

$ FLASK_APP=app.py FLASK_DEBUG=1 DATABASE_URL= flask run

```

To launch the production web server:

```shell

$ DATABASE_URL= WEB_CONCURRENCY=2 gunicorn app:app

```

## License

Licensed under the [BSD 3-Clause License](LICENSE.txt).