“Diabelli - Op. 125, No. 3” is a short Classical piano piece marked Allegretto. The music is written in 2/4 and uses a clear melody-and-accompaniment texture. The right hand carries the simple singing melody, while the left hand supports with steady chords, held intervals, and later a more active broken-note accompaniment. Finger numbers are included throughout, making the piece useful for practicing hand position, smooth phrasing, and basic coordination between melody and accompaniment.

Measures 1–8 introduce the first section. The right hand plays a simple melody with short slurs and mostly stepwise motion, while the left hand supports with quiet p chords and held harmonic tones. A small eighth-note figure appears in measure 6, adding motion before the first repeated section closes.

Measures 9–15 begin the second section with a slightly stronger mf sound. The right hand continues the melody in a similar style, while the left hand provides simple chordal support underneath. The phrase includes slurred melodic shapes and a few repeated notes, keeping the music clear and balanced.

Measures 16–19 shift to a softer p texture. The left hand becomes more active with broken eighth-note accompaniment patterns, while the right hand continues the melody above it. This gives the final section more motion while still keeping the piece light and easy to follow.

Measures 20–end close the piece with a final return to the simple melodic style. The right hand finishes with a short slurred phrase, while the left hand supports with broken accompaniment and a final chord. The repeat sign at the end gives the piece a compact, balanced form.

Interesting fact: Anton Diabelli was both a composer and a music publisher. He wrote many short piano pieces for students, but he is also remembered because Beethoven used one of Diabelli’s waltz themes as the basis for the famous “Diabelli Variations.”