Well. . . . .no, I'm calling the middle finger the 3rd. . .when you ascend, you always use the index finger until you hit the final highest note which you use your middle finger for and start descending again with the index. Some use the 3rd finger, or 1-2, 1-2, on up. . .it varies but this is the way I was taught. .Maihar Gharana style.