Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Guitar Pro 7 - Create, play and share your tabs
JJazzLab - Fed up with boring backing tracks ? Try JJazzLab!
LilyPond - GNU LilyPond is a computer program for music engraving.
Band-in-a-Box - Band-in-a-Box is so easy to use!
NtEd - Music Score Notation editor.