I looked at the sheet music for a piano transcription of The Four Seasons and I see in the third movement of Summer, 2 things that I don't know if I can do. It has partly to do with the Presto tempo but that alone isn't the issue. Here are the 2 things I see.
Alternating between right hand and left hand octave with 1 note shared(the middle note). This I'm pretty sure I can't do at a fast tempo. The middle note would probably not sound out. But I have a few alternatives.
I could have the left hand do an octave tremolo while I have the right hand playing the upper note at half the note speed of the tremolo
I could have both hands play static octaves and just play the right hand of the beginning section 8va
I could get rid of the static octaves all together and use octave tremolos instead, playing the right hand 8va. I tend to get less tension at a fast tempo with tremolos than with static octaves
But there is another issue I see, scales being played so fast I am essentially doing a fingered glissando. I don't often do glissandos anyway but I have never done scales at Presto before. It seems very intimidating. And while I do have fast, nimble, and strong fingers, I'm not sure how I would go about playing a scale at Presto. Would I just speed up a scale played at Allegro gradually to Presto or what?
So how would I play a scale at Presto and which of the 3 alternatives do you think is best to get that same richness and fast octaves sound without having the right hand and left hand share a note in the octaves?