guitarLayers - guitarLayers is a professional macOS guitar learning software.
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Fachords - Fachords is an online site that provides many resources that you can use to take your guitar skills to the next level.
JJazzLab - Fed up with boring backing tracks ? Try JJazzLab!
TrueFire - The Best Guitar Lessons Online Fast. Easy. Fun.
Band-in-a-Box - Band-in-a-Box is so easy to use!