7  TRILLS,PEDALS,OTTAVA: 7, STF, POS1, VERT.POS, P5=SZ(0=1), P6=POS2, 
		P7 (1=NO WIGGLE) IF P7=1, NO WAVY LINE APPEARS.
	FOR ACCIDENTAL OVER TRILL: P8 = 1 =FLAT, =2=SHARP, =3=NATURAL.
 
	IF P7 IS GREATER THAN 1, PIANO PEDAL SYMBOLS WILL PRINT.
		THEN: P5=PEDALS DEPRESSED (USE 3 DIGITS)
		000=NONE		001=RIGHT PED. ONLY
		010=CENTER PED. ONLY	100=LEFT PED. ONLY
		101=OUTER PEDS. 	011=CENTER AND LEFT
		110=RIGHT AND CENTER	111=ALL (NOT USUAL)
 
	P7=2 PLAIN SYMBOL;   =3 ADDS TOP BRACK. EXTENDED TO P6 (POS2).
	  =4 ADD LINE TO TOP OF SYMBOL. (NO BRACKET)  EXTENDED TO P6 POS.
	  =5 PUTS ARROW HEAD AT RIGHT END OF LINE.         
  	  P8 SETS SIZE OF LINE EXTENSION TO LEFT OF SYMBOL (P7=3, 4 OR 5)
	 	P9 IS SIZE FACTOR FOR PEDAL MARKS.
 
  **** OTTAVA *****   P7=8 FOR STANDARD OTTAVA, =-8 FOR OTTAVA BASSA,
		       P7=15 FOR 15MA.  SET P8≠0 TO SUPPRESS BRACKET
		       ENDING OF DASHED LINE.  P5 = SIZE FACTOR.