He pai mo te whakamahi i roto i te IIA,IIB,IIC Pahūtanga hau kino rohe1 me te rohe2.Puehu ngiha IIIA,IIIB,IIIC rohe 21 me te rohe 22Tohu o mua:Ex db IIC T* Gb,Ex tb IIIC T* Db.