he Piano Sonata No. 14 in C-sharp minor "Quasi una fantasia", Op. 27, No. 2, popularly known as the Moonlight Sonata, is a piano sonata by Ludwig van Beethoven. Completed in 1801 and dedicated in 1802 to his pupil, Countess Giulietta Guicciardi, it is one of Beethoven's most popular compositions for the piano.
The first edition of the score is headed Sonata quasi una fantasia, a title this work shares with its companion piece, Op. 27, No. 1. Grove Music Online translates the Italian title as "sonata in the manner of a fantasy".
The name "Moonlight Sonata" has its origins in remarks by the German music critic and poet Ludwig Rellstab. In 1832, five years after Beethoven's death, Rellstab likened the effect of the first movement to that of moonlight shining upon Lake Lucerne. Within ten years, the name "Moonlight Sonata" ("Mondscheinsonate" in German) was being used in German and English publications. Later in the nineteenth century, it could be said that the sonata was "universally known" by that name.
Although no direct testimony exists as to the specific reasons why Beethoven decided to title both the Op. 27 works as Sonata quasi una fantasia, it may be significant that the layout of the present work does not follow the traditional movement arrangement in the Classical period of fast-slow-[fast]-fast. Instead, the sonata possesses an end-weighted trajectory, with the rapid music held off until the third movement. In his analysis, German critic Paul Bekker states that "The opening sonata-allegro movement gave the work a definite character from the beginning... which succeeding movements could supplement but not change. Beethoven rebelled against this determinative quality in the first movement. He wanted a prelude, an introduction, not a proposition.”
The sonata consists of three movements:
O my brothers, this is it. Sounds maybe a little like Chopin. But its old Ludwig Van himself. The sound & the fury. Its all here.