Use the following link to download the latest OM release for Mac/Windows from the Ircam Forum website:

Specialized OM libraries resulting from current musical research at IRCAM are also distributed on the Forum, as well as documentation, tutorials and examples.

License and sources distribution

OM sources are free and available under the GNU Public License (GPL). They can be downloaded from this website and compiled on compatible Lisp platforms using LispWorks, for which IRCAM owns professional distribution license.

Currently LispWork provides no free personal version of LW 7.1 required no compile OM.


The distributed release can be installed in the standard /Applications/ folder.

Multiple versions of OM are allowed (installation will not override previous versions).

OM relies on a number of external libraries that are all shipped in the application bundle.


The distributed installer will create an OpenMusic folder (OM 6.x.x) in C:\Program Files\.

Musical fonts will be installed in C:\WINDOWS\Fonts\.

Library dependencies will all be shipped as dll files in the OM root directory.

Note: If an error message appears at launching OM on windows indicating that MSVCR libraies are missing, download and install the Microsoft Visual C++ Redistributable Package.


Alternative and regularly updated downloads of OM for Linux are available at:

Packages are available as .rpm or .deb. Most users should be able to just double-click on the provided packages, and leave your distro's package-maintainer (ie: dnf or dpkg) to take care of all necessary dependencies. (Update 2017-03-15: the SDIF and OM fonts package are no longer needed, as these are now installed together with the rest of the application.)

There's also a tarball (.tar.bz2) available. After downloading and unpacking, OM can be run from inside the extracted folder, or be installed using the supplied Makefile. OM will look for its fonts (the omfonts package) at the usual places on your system.

Since january 2017 OM is a 64-bit application. The previous 32-bit version is no longer maintained.

Please check back every now and then for new builds, fixes and new features - and be sure to follow announcements on the various forums.

Please direct bug-reports, questions and feedback to the forum.


openmusic/download.txt · Dernière modification: 2018/10/31 17:18 par Jean Bresson