In a question about the program of music theory I read the term keyboard reconstruction.link
What does it mean?
He is referring to the ABRSM Theory syllabus, Grade 8.
I think 'Keyboard reconstruction' may be a corruption of 'keyboard realization'.
"Continuation of a given opening of a passage from a Baroque trio sonata for two treble instruments and basso continuo. The basso continuo part will be given throughout and fully figured (but a realization for keyboard will not be required)."
I also see the possibility if it being a corruption of some other part of the syllabus. It may be that @Lenna, the original questioner, is confused over the requirements. So it's pointless to analyse his description of them too rigorously.