No specific info about version 21.9. Please visit the main page of Sibelius on Mac Informer.
Is a very good application.
New generation of tool for music production that...
This program teaches you how to work with Sibelius app on your Mac.
Is perfect for music homework and coursework, and for creating and sharing.
View, play, customize, and print Sibelius scores on the Internet.
Is a very good application.