Я думаю желающих улучшить технику левой руки(без гитары ) не затруднит перевести на русский.
There's a mathematical way of approaching finger independence. Imagine using your fingertips to drum on a table top You should be able to get a 'drum roll' of four notes in rapid succession. I guarantee that the quickest drum roll you can get will be the one where your fingers land on the table in the order 1-2-3-4, or possibly the reverse. Wouldn't it be good if you could get the same speed when you moved your fingers in a different order? I'm sure you can see how this could benefit your fretting technique, and it's an exercise that you can practise without your instrument. You could use your right forearm as a substitute guitar neck and go through the motions of hammering various finger combinations. If you spent five minutes a day waiting for a bus, this might be one way of spending them profitably (As a bonus, everyone else in the queue will be puzzled or frightened by your apparent compulsive-finger disorder, and if the bus ends up with one unoccupied seat, it'll probably be the one next to yours! Ah, luxury.)
1-2-3-4 2-3-4-1 3-4-1-2 4-1-2-3
1-2-4-3 2-4-3-1 3-1-2-4 4-3-1-2
1-3-2-4 2-3-1-4 3-2-4-1 4-1-3-2
1-3-4-2 2-4-1-3 3-4-2-1 4-2-1-3
1-4-2-3 2-1-4-3 3-1-4-2 4-2-3-1
1-4-3-2 2-1-3-4 3-2-1-4 4-3-2-1