The circle is a Procrustean bed - the real way to derive the scale is to use a line of fifths that never returns to the starting pitch. Circle any group of seve

The circle is a Procrustean bed - the real way to derive the scale is to use a line of fifths that never returns to the starting pitch. Circle any group of seven consecutive fifths, and the group's major scale tonic is the one second from the left. This line goes into double and triple sharps/flats, etc.