I just saw the 2013 Spanish thriller (English language, though, with American actors) "Grand Piano". The basic plot twist will captivate most of us: A pianist, during a performance, is told that he if hits a single 'wrong note', he'll be shot!! Of course, we've all had dreams like this, but the director uses it to spin out 90 minutes of action and sometimes terror. It had a limited box-office release; I got the DVD from the library. BTW: The piano in the movie is a Bosendorfer with all the extra keys (they used to call that model the "Grand Imperial", I believe), but custom-made for a fictional pianist/composer. Pianist is played by Elijah Wood; John Cusack is also in the movie.