Moonlight Sonata known as The Piano Sonata No. 14 in C # minor, "Quasi una fantasia", Op. 27, No. 2 is one of the most famous pieces of music ever written for the piano. How wonderful and groundbreaking compositions are! Never get bored. 1st Movement: mysterious/gentle/sorrowful/mournful but powerful impression 2nd Movement: calm to uplifting/joyful/cheerful 3rd Movement: It's a masterpiece. astonishing.