the fact that yamaha make their styles backward compatible for use within their own products would indicate that copying styles from one yamaha product to use on another yamaha product might still fall under normal use but certainly cloning a yamaha product ,its styles, its internal sounds and then distributing that or selling that on another keyboard or packageing the styles as part of the sale on another keyboard is definately illegal and would not fall under normal use.

Obviusly it will be for lawyers to argue out what is normal use but its a high risk strategy for any business to copy another businesses work wholesale and then hope they can avoid copyright laws under "normal Use" as an exemption.

It is unlikely that private users would get prosecuted as there is no money in it but a commercial business most certainly would if the matter was brought before a judge.

[This message has been edited by spalding1968 (edited 06-18-2010).]