This is not nearly as hard as it looks. As I wrote in 1969, “In spite of the intimidating profusion of sharps and double sharps, you will not find the piece difficult for the left hand unless you fail to hold down notes which are to be repeated...” This alegrias is mostly based on the E and B7 chords."
If you don’t care for the rasgeados or you haven’t learned
the
Count twelve instead of three, that is four measures at a time. That's the best way to count a lot of more authentic flamenco too.
§1 The butterfly is index down, thumb up, index up.