Rewrite the second paragraph of the “Style” rule to:

Styles may change manually or automatically (i.e. as the result of other changes) as described below.  When an effect (either manual or automatic) would set a Style entry to a certain value, it is considered a change only if the new value is different from its previous value.  All the automatic changes that happen as a result of a manual change occur before another manual change may take place. If a change immediately leads to more than one automatic change, all such automatic changes happen simultaneously, but if simultaneous changes would simultaneously set the same Style entry to different values, that value instead remains unchanged. Automatic changes can lead to more automatic changes and so on, until a state (the set off all the Musicians’ Styles) is reached where no more such changes are required. If, in a sequence of changes, the same state is reached twice, the changes cease having an effect, and no more automatic changes occur until after a manual change. For instance, suppose someone makes a manual change from state A to state B. State B leads automatically to state C, which leads automatically to state A, which leads automatically to state D, which leads automatically to state C. Here it stops, because C was reached twice.