I thought they´d invented something by now. I guess it would still be hard to sightread but I´m surprised there´s no notation of music for blind people.
Oh, there is. But to get it transcribed costs money, and I am on SSI so don't have enough money, and the university won't pay for it. To get this concerto transcribed that I'm learning, for instance, could cost several hundred dollars. I might look into it more eventually, though.
When the person reads the music for you does he/she tell use abbreviations for chords, scaleruns and common figures or do you go through note by note?
Depends on the person. My piano teacher at home sometimes does, but the students here I have read the music to me just usually read note-by-note. But if I notice a pattern, I'll bring it to their attention, and we'll figure out how far it goes, especially if it is some sort of arpeggio.
Yeah, I have to pay a student to meet with me several times a week in order to help me memorize, so that I can learn it for my actual piano lesson. It works out well, though.