I was given an old piano to demolish. ( it seems you can barely give them away). Anyway I am a great one for using material around the shed and I had a couple of pieces of wonderful textured bits of fencepost. Well they both are wood so It wasn’t long before I had cut slots in the fence post and inserted bits of the piano keys. They really are quite abstract and sort of comical. This suggested a semaphore sign also hence the title