detwidkul wrote: ↑
Mon Mar 18, 2019 2:57 am
TO start with IM with simple chromatic run F - G# (1234) and so on to the 5th fret. the finger alternate normally
But when start with MI it gets little awkward in controlling.
the problem is more obvious when run with 3142 and start with IM, it is easier to start with MI
I think it is because when both hand start from opposite direction. But in reality when both hand palm down, they do move in the same direction.
Is it the brain and eye issue ? and how to fix this problem correctly
I think you've made good observations. It is a brain issue. We seem to be wired so that it is a bit easier to perform mirror tasks with left and right hand. If you try to write your signature with both hands, it is much easier to produce something passable with the non-dominant hand (say the left hand) if it is writing the mirror image of your signature simultaneously with the right hand writing it the proper way (versus LH trying by itself; or versus LH doing the signature in the same direction as the dominant hand simultaneously).
This seem to translate to the guitar. Because the left hand is flipped over, it means that it would be easier to start a scale with RH i -> m if the left hand has to do 1-2 or 1-3 or 1-4 (so going in the 'same direction', which because of the flipped left hand still implies going mirror-like.)
To solve this - just practice. Slowly. Your brain can learn every which way; just be patient.
: Also note that this feeling/confusion tends to occur only at the start of a scale, so there is a psychological component to it as well. We tend to notice it when starting a scale, but not so much the many times within a scale that the LH and RH are going in the "wrong" direction. This surely occurs a lot within a scale run since the RH only goes i->m or m->i, i.e. switches "direction" with every note, while the LH frequently has groups of 2 or 3 notes in the same direction.