hello, you have found out that this track is not available in the piano exam of the Central Conservatory of Music, but there are the third movements of K33 and K331 in the track of Grade 8. The first movement of K331 is a moving andante composed of the theme and six variations. The whole musical image is simple, gentle and full of connotation, and it needs to be very clear and transparent in details, and the playing time is also very long. It takes about 14 minutes, so the test grade should be at Grade 8 or above. I hope my answer is helpful to you.