The piece I am learning is invention#8, I can play HS very well in tempo or faster without looking at the score. I am at the point where I can do each part subconciously, just letting my fingers fly. I am trying to get to point of doing HT this way, but it's happening very slowly. I am progressing, but just too slowly, I wanted to find a way to speed up this process.
This piece is perfect for phrase by phrase practice
You sightread the piece HS
You break the piece in many little phrases
Mark the harder phrases that you can't play HS
Work on that marked phrases by alternating LH and RH very often
Now, re-sightread the piece hadn together
Mark those phrases/bars when you have coordination problems
Work just on that bars
Repeating them HS then try to see how coordination work HT
If after few repetition you still make errors, cut the phrase in half
Depending on the difficulty of the phrase you may even end up practicing coordintion on single notes
By working only on a small portion of the score at a time you can train you hand technical-wise and speed-wise in a matter of minute
Once the phrase is fully metabolized do not touch it until the next day letting it be developed by your subconscious
I remember this Invention because it was Chrismas Holiday and I had to learn this invention before the beginning of school
But I had fun that Christmas playing Xmas songs, playing with my cousins and relative, snow battles, snow sports, good animated movies and all of that
So when school begin I hadn't practice a single day
So I basically had to learn the whole invention perfectly in two days, and I was able to
I basically did something like this
5 minutes: work on the marked chunk, 60 times alternating HS and then HT two notes by two notes
5 minutes: rest in front of television
5 minutes: work on another marked chunk in the same manner
5 minutes: rest in front of console
5 minutes: work on another marked chunk in the same manner
5 minutes: rest in from of a giant pizza
Basically alternating piano and fun I kept myself and my midn concentrated while taking advantage of short continuing post practice improvements
So basically I practice 30 minutes our of 60 with a 5 pause any other 5 minutes
After two days I knew the piece perfectly but I had still some problem with a phrase
I would have been a waste of time to repeat the piece over and over trying to play it perfectly since it was only few notes that ruined the whole piece
So I focused in just that chunk (bar 18 exactly)
Oh well...
Daniel