Mixing sharps and flats? I chose c as root and db (d flat) is in the image...but so is f# (f sharp). I have no problems explaining ie fb (f flat) or e# (e shar

Mixing sharps and flats? I chose c as root and db (d flat) is in the image...but so is f# (f sharp). I have no problems explaining ie fb (f flat) or e# (e sharp) etc, in certain circumstances, but I'm a great believer in: don't mix the two (sharps and flats).