Can I make a professional hip-hop instrumental only with a Yamaha Motif XS8 Keyboard?

[La Maravilla]

Also, whats the difference between the XS8, XS7, and XS6? is the amount of keys included the only difference?

 

[Albert W]

yes, check out this video

http://www.youtube.com/watch?v=EKaYCe9iK1I