OpenMusic (OM) is an object-oriented visual programming environment formusical composition based onCommon Lisp.It may also be used as an all-purpose visual interface to Lisp programming. At a more specialized level, a set of provided classes and libraries make it a very convenient environment for music composition.[1]
OpenMusic is the last in a series ofcomputer-assisted composition software designed atIRCAM.Versions of OpenMusic are currently available forMac OS X (PowerPC andIntel),Windows andLinux. Thesource code has been released under theGNU Lesser General Public License (LGPL).
Programs in OpenMusic are created by connecting together (a process known as 'patching') either pre-defined or user-defined modules, in a similar manner to graphical signal-processing environments such asMax/MSP orPd. Unlike such environments, however, the result of an OpenMusic computation will typically be displayed in conventional music notation, which can then be directly manipulated, if so required, via an editor. A substantial body of specialized libraries has been contributed by users, which extends OpenMusic's functionality into such areas asconstraint programming,aleatoric composition,spectral music,minimalist music,music theory,fractals,music information retrieval,sound synthesis etc.
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