As the name suggests, produces high-quality music printout in a fully WYSIWYG and flexible manner. It is not a sequencer, nor does the package play back the music to you, rather it is a tool for professional-level musicians who need to be able to print out very high-quality music complete with text and a full range of music symbols. Like a word-processor it relies on your abilities to produce correct output. In fact if you wish to break the rules of music to producecertain effects, it will not complain. If it wont produce what you want to see, the author would like to know.