Magnetic tape tracking control apparatus and method, magnetic tape format, recording medium and program for controlling tracking of tracks on a magnetic tape by a rotary head are disclosed. A device includes a panel and a piezoelectric element disposed in a predetermined region on a planar surface of the panel. The optical path is monitored for a change in an optical characteristic. The main blade resembles a portion of a cylinder in form, the cylinder being twisted to change the angle of attack, thereby adding more lift throughout the length of the blade. A beverage syrup is diluted and sorbate is simultaneously introduced into the diluted syrup to form the beverage.