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zgomot is a Ruby DSL for composing music as programs. Programs generate MIDI streams that are rendered by audio software such as GarageBand and Ableton Live. It provides abstractions that easily allow programming of algorithmic music. This includes using Roman Numeral Notation to represent a melody and applying sequences of transformations to produce notes.

Writing a program that goes through scales is easy.

Install

  gem install zgomot

Configure

  # zgomot.yml
  time_signature: 4/4
  beats_per_minute: 120
  resolution: 1/64

Code

  # mytune.rb
  require 'rubygems'
  require 'zgomot'

  str 'scales' do 
    ch << [np([:C,5]),
      np([:C,5]).reverse!.shift, 
      n(:R)]
  end

  play

Run

  ruby mytune.rb

Enable IAC Driver

The IAC Driver must be enabled for programs to communicate with the digital audio software used to render used to render the generated MIDI stream. To enable the IAC Driver open Audio MIDI Setup. Under the Window menu item select Show MIDI Window. Find the IAC Driver, double click it and be sure Device is online is selected and at least one port exists.

Start Digital Audio Software

Start Garage Band, Logic, Abelton Live or any other Digital Audio Workstation software and select an instrument.

Documentation

Artists