composition

and notation processor for Windows. It provides for the creation, play back, and printing of your own musical scores. It will also save your compositions to other MIDI applications, thus making your compositions available to a wide variety of music software on the market today. Additionally, NoteWorthy Composer is able to automatically convert standard MIDI files into notation, thus enabling the exploration of existing songs that you may have on your machine already.
http://www.noteworthysoftware.com/composer/download.htm