A follow up question or two, Steve...

Let's say you have a Yamaha product, and use it for commercial song production. Does using the Intro or Ending unaltered on say a jingle or commercial production infringe copyright? How much of the canned Intro would have to be changed for it NOT to be, (if it is)?

And secondly, once again you use a Yamaha product. You make a sequence using the styles, but then use another manufacturer's product to play back the sound (let's say you use a Roland product for it's piano) on a commercial work, but it's the Yamaha style that is driving it. Is this copyright infringement?