I used to make a sketch and then make a complete score, which takes a long, long, long time - not a concert sketch, but a transposed sketch, which takes a lot of time. But I can see why Duke Ellington avoided all that. He wanted to get to the sketch, and then he wanted to hear it right away. When he wrote something, he wanted to hear it right away. When you have to make a sketch and then make a score, that takes a lot of time. It's hard on the eyes. Too tough. So I learned to do that: make a sketch - clean sketch. That way the copyist can transpose it and have it ready. .