Hi again Larry:

You asked: Why do you have to copy the patterns in composer first? Is this step really necessary?

You have to ask yourself another question first. The answer to that question will answer your question...

Ask yourself this; Do you like the pre-built rhythm pattern that is being used in the song, and you want to keep that exact rhythm pattern in the song if you ever upgrade to the next model? If the answer is yes, then the answer to your question is yes. Not that it's required, but for your benefit in having that particular rhythm available when loaded.

Anthony