Once you get to 4 on the first string, move across to the second string and start back at 1. Repeat this all the way to the sixth string, then back again, continuing playing the 1-2-3-4 sequence.

We can use these high and low points to describe two things. First, there is the amplitude. This is the distance of the high point from the equilibrium position—the position of the string if it ...

It’ll depend on how many notes you’ve got to play along the string. If you have, say, four notes played one after the other going up along a string then you might use your first, second, third then ...