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Version 6.17.0 (beta)

Build Status

A sound and music computing system.

Csound is copyright (c) 1991-2020 The Csound Developers, see CONTRIBUTORS

Csound is free software; you can redistribute them and/or modify them under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

Csound is distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this software; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA


This repository contains the code for the core Csound library, the interfaces library, and the command-line interface frontend. It also contains specific code for ports to various embedded, mobile and web platforms.

For general project information, please look at, where all details about Csound, what it does, its history, music made with it, and many other things can be found.

The Csound Reference Manual can be found online at

The Csound API application programming interface reference may be found online at

Information on how to build Csound on various platforms is given in the file at the top level directory of this repository.

Information about build pipelines with Azure and Github actions is given in DockerFiles/


Csound contains contributions from musicians, scientists, and programmers from around the world. They include (but are not limited to):

  • Allan Lee
  • Andres Cabrera
  • Anthony Kozar
  • Barry Vercoe
  • Bill Gardner
  • Bill Verplank
  • Dan Ellis
  • David Macintyre
  • Ed Costello
  • Eli Breder
  • Fabio P. Bertolotti
  • Felipe Sataler
  • François Pinot
  • Gabriel Maldonado
  • Greg Sullivan
  • Hans Mikelson
  • Henri Manson
  • Ian McCurdy
  • Istvan Varga
  • Jean Piché
  • Joachim Heintz
  • John Ramsdell
  • John ffitch
  • Marc Resibois
  • Mark Dolson
  • Matt Ingalls
  • Max Mathews
  • Michael Casey
  • Michael Clark
  • Michael Gogins
  • Mike Berry
  • Nate Whetsell
  • Paris Smaragdis
  • Perry Cook
  • Peter Neubäcker
  • Peter Nix
  • Rasmus Ekman
  • Richard Dobson
  • Richard Karpen
  • Rob Shaw
  • Robin Whittle
  • Rory Walsh
  • Sean Costello
  • Stephen Kyne
  • Steven Yi
  • Tito Latini
  • Tom Erbe
  • Victor Lazzarini
  • Ville Pulkki