maelzel 0.8.1

Utilities for sound, music notation, acoustics, etc

maelzel is a framework for doing computer music in python. It is

based on a core package, which provides datatypes to define notes, chords, sequences, lines, voices, scores, etc. Other modules provide functionality for working with sound (loading soundfiles, working with samples, applying filters, fading, mixing, playback), sound analysis, music, acoustics, music notation, etc.

Documentation

https://maelzel.readthedocs.io/en/latest/index.html

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Structure

• core: core module defining basic classes for computer music (Note, Chord, Voice, Score, etc). Any of these objects can be representated as notation and played back.

• snd: read/write soundfiles, process samples, apply filters, fades, etc.

• music: music representation, algorithmic music, etc

• scoring: music representation. Offers support for microtones (up to 1/8 tones or any cent deviation), very refined cotrol of automatic quantization, glissandi, grace-notes, annotations, etc. Supports multiple backends (lilypond and musicxml at the moment).

• acoustics: formulas for helmholtz resonators, speed of sound, etc.

• midi: read/write midi files, general midi

• ext: wrappers around external software, like sonic-visualizer, audacity, reaper

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Installation

pip install maelzel

Dependencies

• csound (>= 6.16)

Optional Dependencies

• MuseScore (for rendering musicxml to pdf when using the musicxml backend)

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Examples

https://github.com/gesellkammer/maelzel/tree/master/examples

Messiaen - Quatour pour la fin du temps - La liturgie de Cristal

Notebook: Analysis and reconstruction of the piano and cello isorhythmic structures

Audiosample

Example of the audiosample module

Notebook: spectrogram and fundamental analysis / resynthesis using the pyin method