Moonlight Sonata - Ludwig Van Beethoven (1802) 1st Movement Piano Sonata No. 14 in C-sharp minor, Op. 27, No. 2, (Mondscheinsonate in German)
Complete Piano Sheet Music
Adagio sostenuto is an Italian musical term meaning "slow and sustained"
Moonlight Sonata - Ludwig Van Beethoven (1802) 1st Movement Piano Sonata No. 14 in C-sharp minor, Op. 27, No. 2, (Mondscheinsonate in German)
Complete Piano Sheet Music
Adagio sostenuto is an Italian musical term meaning "slow and sustained"
#SunsetPiano Sheet-Music - Moonlight Sonata - Ludwig Van Beethoven (1802) 1st Movement in Key of C# minor
šSunset Pianoš¹Ā Ā 10/10/2025Ā 1140Ā v5.01Ā CompleteĀ 8 Pages 66 Measures
Ludwig van Beethoven's Piano Sonata No. 14 in C-sharp minor, Op. 27, No. 2, better known as the "Moonlight Sonata," is one of the most popular compositions in the piano repertoire.
History and Dates
Composition and Dedication: Beethoven completed the sonata in 1801 and dedicated it in 1802 to his pupil, Countess Giulietta Guicciardi, with whom he was infatuated at the time.
Original Title:Ā
The sonata's original title was Sonata quasi una fantasia (Sonata almost a fantasy), reflecting its unusual structure, which deviates from the typical classical sonata form.
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The Nickname:Ā
The popular name "Moonlight Sonata" (Mondscheinsonate in German) was not given by Beethoven but emerged decades later.Ā
In 1832, five years after Beethoven's death, German music critic and poet Ludwig Rellstab likened the effect of the first movement to that of moonlight shining upon Lake Lucerne.
The First Movement: Adagio Sostenuto (Key of C-sharp minor)
The first movement is arguably the most famous part of the sonata and is marked Adagio sostenuto (slowly, sustained).
Music Theory and Structure
Key:Ā
The movement is in C-sharp minor, the tonic key of the sonata. The key signature has four sharps (F-sharp, C-sharp, G-sharp, D-sharp).
Tempo and Mood:Ā
The tempo is slow and the overall mood is often described as somber, mournful, or funereal.Ā
Beethoven instructs the pianist to play the entire movement "delicatissimamente e senza sordino" (most delicately and without dampers), which implies using the damper (sustain) pedal constantly on the early 19th-century piano to create a shimmering, blurred effect.Ā
On a modern piano, this is often interpreted as half-pedaling or carefully changing the pedal to avoid excessive dissonance.
Form:Ā
It is written in a modified sonata-allegro form, which is unusual for an opening movement, as classical sonatas typically began with a fast Allegro movement.
Ā Beethoven intentionally places the most intense music later in the sonata, saving the dramatic weight for the third movement.Ā
The modification of the form includes:
A continuous texture of a relentless triplet broken-chord accompaniment that runs throughout the entire movement, creating a "rolling" or "swaying" feeling.
A prominent, dotted-rhythm melody heard mostly in the middle register (alto voice) against the triplet background.
The movement features a first theme, a contrasting second theme (often in the relative major, E major), a brief development section, a recapitulation, and a coda.
Harmony:Ā
The harmony is relatively simple, but effective, creating a constant sense of tension and longing.Ā
An example of this is the use of the Neapolitan Sixth chord (a D major chord in first inversion) in a prominent passage, adding harmonic color and tension before resolving to the dominant.