It took me a while to get a good design for the pipe organ. Here's what I started with:
I figured it wasn't big enough, so I thought, "What would happen if I mirrored it to the other side?"
I thought it was starting to look better, except for the fact that there are two short sections in the middle. I didn't want two sections of the same height right next to each other, so I took one out:
Then I added some details, and voilá!
If you look closely, you can see the original design play out in the final version!