Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Amper Music - Artificial intelligence music composer
JJazzLab - Fed up with boring backing tracks ? Try JJazzLab!
Music Memos by Apple - An app to capture your song ideas
Guitar Pro 7 - Create, play and share your tabs