“Why are you calling that do ? It sounds like ‘ fa ?’” I turned away from the board and met the knitted eyebrows of the second grader who had asked the question. Many other young musicians also looked confused, their heads innocently cocked to the side. The student likely had perfect pitch - and was right. They were used to calling that pitch “fa” outside of school. I replied, somewhat inadequately, “ Do can move. Whatever we call do becomes home base, and in this piece, th