geisha perform dance in tokyo

i will be in tokyo in the first week of april can anyone tell me where to get tickets for geisha dance performance?

In Tokyo, you're possibly thinking of the Kagurazaka Geisha Dances, which are usually held in April.

Kagurazaka Odori
A geisha show by Tokyo Kagurazaka geisha.
Place: Kagurazaka Gekijo Theater
Address: 15 Tansu-machi Shinjuku-ku, Tokyo
Access: JR Sobu Line Iidabashi Station / Tokyo Subway Iidabashi Station / Ushigome Kagurazaka Station
Tickets: 4,000 yen
Information: Tokyo Kagurazaka Kenban 03-3260-3291

If you're able to get there, Kyoto has by far the more famous Spring geisha dances, the Miyako Odori, which run throughout April.
http://www.miyako-odori.jp/miyakoodori/english.html

Hope this helps!

Thank you for such a comprehensive answer.