<> Put in = style assignment expression. e.x.: aaa=100 must be any alpha-numerical characters or Japanese characters. is not case-sencitive, but one-byte character and two-byte character which have same glyph are not identical. Entered expression is evaluated when the event is played. Once the evaluation is performed, variable is available at the following context: - Gate/Value on control change event - Value on tempo event <> Scope of valiable is all track of the file. If you use a valiable named "Volume" on Track1 and Track2, these valiables represent a same variable. <> ・abs(x)　 return absolute value of x. ・sin(rad)　 unit of argument is radian, not degree. ・cos(rad) ・tan(rad) <> ・pi - 3.14159.... ・rnd - random real number [0,1].