Mr. Tanaka is a member of the Friends of the Library, so his fee for Lecture A is 1,000 yen. The fee for Lecture B is 2,000 yen. According to the 'Special Notes', if one applies for both Lecture A and B, a 500 yen discount is applied to the total fee. This discount can be used in conjunction with the member discount. The question states he completes all necessary procedures, which includes noting his intent to join Lecture B. Therefore, the total fee is (1,000 yen for A + 2,000 yen for B) - 500 yen discount = 2,500 yen.