Keezy Drummer - Make a beat in seconds
Guitar Pro 7 - Create, play and share your tabs
AutoDrum - AutoDrum" is free, open source software for automatic drum performance.
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Band-in-a-Box - Band-in-a-Box is so easy to use!
OpenMPT - OpenMPT is a popular tracker software for Windows.