Mozart the music processor is a proprietary WYSIWYG scorewriter program for Microsoft Windows.

[9] Work was started on the software in the late 1980s as a personal project to assist its author in arranging music for the groups in which he played.

The idea was to be able to type the music as a document, save it in a file, print it as well as play it back through the computer's speakers.

Mozart's development in the subsequent decades has been driven by the needs of its users.

[10] Elaine Gould's 2011 book, Behind Bars, is the primary guide to developing and maintaining music engraving in Mozart, as it is for other score writers.