A music composition tool for structuring chord progressions and patterns, written in Rust.
The philosophy behind Chord Composer is to make a lightweight, portable, and accessible tool to structure chord patterns and progressions for music composition ideas. It must fit into common digital music writing workflows and not hinder the creative process of the user.
- Describe compositions with patterns in
YAML. - Export composition patterns to
MIDIclips. - Playback composition patterns with a piano in the command line.
- Command line interface.
- Cross-platform.
- Languages:
- English
- Português
- 简体中文
- Build a terminal user interface.
- Develop better audio engine and instrument sampler.
- Support
MIDIrouting. - Explore the need to support common trackers.
- Support more languages (including pirate).
- Linux: TODO
- Mac: TODO
- Window: TODO
./chord_composer --help
A music composition tool for structuring chord progressions and patterns.
USAGE:
chord_composer.exe [SUBCOMMAND]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
SUBCOMMANDS:
chords Print the list of supported chords and their intervals.
export Export composition patterns to .MID.
help Prints this message or the help of the given subcommand(s)
play Playback patterns in a composition.
template Export a composition arrangement YAML template
./chord_composer play --help
Playback patterns in a composition.
USAGE:
chord_composer.exe play [FLAGS] <COMPOSITION_FILE>
FLAGS:
-h, --help Prints help information
--metronome Play a metronome during playback.
--ticker-bar Prints the current time on each bar change.
--ticker-beat Prints the current time on each beat change.
--ticker-interval Prints the current time on each beat interval change.
-V, --version Prints version information
ARGS:
<COMPOSITION_FILE> The YAML composition arrangement file.
- Install Rust.
- Clone this repo with Git. e.g
git clone https://github.com/unsignedbytebite/chord-composer.git
- Run
cargo testin the repo's directory to ensure it's working. e.gcargo test - Open
./examples/and run/look at the example scripts to see how to use Chord Composer e.gcd ./examples/ ./play_composition.sh
eng- Build with English strings.pt- Build with Portugeuse strings.zhn- Build with Chinese(Simplified) strings.no-audio- Build without the support of audio playback.
The schema for the composition parameters YAML file are outlined below in this template.
# Name of the composition
name: default_composition
# The default master parameters of the composition.
# New master pattern can be assigned to a pattern that overrides
# the default master values.
master:
# The musical key to transpose the chords.
# Supported values: C, C#, D, D#, E, F, F#, G, G#, A, A#, B
key: F#
# The beats per minute of the composition.
time: 120
# The time signature of the composition.
# Beat numerator supported values: must be > 0.
# Beat denominator supported values: 2, 4, 8, 16, 32, 64
# e.g 3/8 is supported, 0/7 is not supported.
signature: [4, 4]
# Composition defined chords.
chords:
# [chord_name, [chord intervals]].
- [custom1, [0, 3, 8]]
- [custom2, [0, 5]]
# The composition's chord patterns/progressions.
patterns:
- name: part_a
# Each pattern event = [bar, beat, beat interval, chord name, chord transpose].
pattern:
- [1, 1, 1, MAJOR_SEVENTH, 0]
- [1, 3, 1, custom1, 0]
- [2, 1, 1, MAJOR_NINTH, 0]
- [2, 3, 1, custom1, 0]
- [3, 1, 1, MAJOR_SEVENTH, 3]
- [3, 2, 1, custom1, 0]
- [4, 1, 1, MAJOR_NINTH, -3]
- [4, 2, 1, ?, 0] # ? = Select a random user defined chord.
- name: part_b
master:
signature: [4, 8]
key: C#
time: 69
# Each pattern event = [bar, beat, beat interval, chord name, chord transpose].
pattern:
- [1, 1, 1, MAJOR_SEVENTH, 0]
- [1, 2, 1, custom1, 0]
- [2, 1, 1, MAJOR_NINTH, 0]
- [2, 2, 1, custom1, 0]
- [3, 1, 1, MAJOR_SEVENTH, 3]
- [3, 2, 1, custom1, 0]
- [4, 1, 1, MAJOR_NINTH, -3]
- [4, 2, 1, ??, 0] #?? = Select a random chord from user defined and internal defined chord.
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