Hi. The ideea of the lesson is to develop right hand technique using 3 fingers A, M and I. By always keeping the same pattern A,M,I,A,M,I,A..... your fingers will have more time to rest between strokes, so you can achieve a greater speed. You must keep this order even when you cross the strings.It can be very difficult at first coordinating the fingers but in time you will see the benefits. This is the fingering