Nightingale is one of the best Music Notation Software packages for Macintosh that you can use. It's output is of a professional level, and its ease of use is unmatched. Although it is capable of the most subtle notational tweaks, learning its basic functions is simple compared to other notation programs.
It provides Mac users with exciting new options and file browsing experience.
Best and most popular tweaking tool for Lion.
What Nightingale does: It produces professional quality PostScript output which is as good as or better than that of any desktop Notation program.
Take charge of macOS's internals using handy tweaks.
Exports your PST files to the Apple Mail application.