Alex Webster on bass. 3-finger technique all over. June 2008. Yowza.
Right now, what I’m practicing are scale patterns. I use them to warm-up. They’re basically exercises that train your fingers to play the notes of a scale in order, both forward and backward. The pattern that I use the most for the major scale is pictured on the right. It shows the fingering positions, so (i) is index, (m) is middle, (r) is ring and (p) is pinky. These fingers are also shown as 1-2-3-4.
Basically what you want to do to play the pattern is go from lowest string (E) up to the higher strings, in order. So, if you were playing from the 1st position (with your index finger on the first fret and the other fingers each ready to play the 2nd, 3rd and 4th frets) it would look like this, in tablature: