in a digital audio magnetic tape reproducing apparatus of herical scanning using two magnetic heads , a first head reproduces a pilot signal of its own track and two pilot signals of both neighboring tracks of its own track by affection of crosstalk , then a difference value between the values of the reproduced signals of the two pilot signals is calculated and is applied to a tracking servo system as a tracking error signal , moreover , the difference value is controlled by a reproduced signals of a pilot signal reproduced by a second magnetic head in the previous reproducing period .