Common Music Notation
Common Music Notation is open-source musical notation software. It is written in Common Lisp and runs on a variety of operating systems and Common Lisp implementations.
CMN provides a package of functions to hierarchically describe a musical score. When evaluated, the musical score is rendered to an image. An example score expression and the image resulting from its evaluation is shown.
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The output file format of CMN is Encapsulated PostScript.