Within a sequence, the following characters have special meaning:

• '%' toggles highlighting (underline + italic).
• '$' toggles extra highlighting (underline + italic + bold).
• '(' and ')' enclose comments.
• '[' and ']' modify call interpretation. For example,

       [As Couples Swing Thru] & Roll  ===>  does an individual Roll.
       [As Couples Swing Thru & Roll]  ===>  does an As Couples Roll.
  
       [Run Wild 3/4] Reset  ===>  does a 3/4 Run Wild then a Reset.
       Run Wild [3/4 Reset]  ===>  does a Run Wild then a 3/4 Reset.

• '{' and '}' modify both the display and execution of a call. For example,

       {TextToDisplay; CallsToExecute; Level}
  
       displays 'TextToDisplay' when viewing the sequence, but
       executes 'CallsToExecute' when processing the sequence,
       assigning it the level of 'Level'. (Level and preceding ; are optional)

An indented line is considered part of the previous line.