Combine tea powder in 4 oz. warm water with whisk (not entirely necessary, but it makes it faster)until it has dissolved completely and there are no lumps. If you want to eliminate the etxra liquid, warm the 2/3 c. of soymilk and combine the matcha in that.
Add all ingredients to blender, including mixed matcha. Blend until smooth. taste amazingness. It's exactly like green tea frappucinos from Starbucks, as I remember.