Hello,
in addition, you can also go to the official Nuendo product website:
Other resources (still Nuendo 5):
http://www.softwaretrainingtutorials.com/steinberg-nuendo-5.php
Regarding the music features, yes, you can use the Cubase videos as orientation for the music production
workflow with Nuendo. (Please note you need to have the NEK option to have access to all music features).
Thanks,
Timo