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I confused f,a,c,e with e,g,b,d,f

I hadn't touched a keyboard in a while, so my brain transposed f,a,c,e into the left hand and made them bass notes. I was wrong. Human singing notes don't start with middle C. It is too high. So I started my song with F sharp, below middle C. It was not exactly Amazing Grace. And my song was not all black notes, but I tried to write them down so they would be captured on paper. The vendor who sold me the manuscript book was kind enough to let me use one of their keyboards to pick out the song.