Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Turtle - New kind of anonymous messaging app
JJazzLab - Fed up with boring backing tracks ? Try JJazzLab!
Kruzo for iOS - Send an anonymous message and make someone's day brighter
Guitar Pro 7 - Create, play and share your tabs
throwaway - throwaway is an in-browser messaging app.