A lot of GP users will be interested by this new update, as Song Master is a very nice companion to GP. And it is a free update, thanks @aurallysound ! 
Updates for Song Master Pro 2.0 and Song Master 4.0
We’ve added a bunch of new features and improvements to Song Master Pro including a Song Sheet view and exporting your song as a pdf, MusicXml, or text. Tempo map, chord names, and more can now be exported as midi meta data.
Read all about the updates to Song Master Pro here.
We’ve also updated Song Master with a new count-in option, an acoustic piano with onscreen keyboard, and a number of other improvements and fixes.
Read all about the updates to Song Master here.
We’re making this a free update for all users. Use the button below to download the latest update for your os.