The Bagatelle in C major, catalogued as Hess 57 and Biamonti 784, is a musical fragment that dates from the final years of Beethoven’s life, likely composed around May–June 1824. This brief yet expressive sketch was found among the preparatory materials for Beethoven’s Six Bagatelles, Op. 126, and is now preserved in the archives of the Gesellschaft der Musikfreunde in Vienna under the catalog number A 50. Though only spanning 33 bars, the piece is musically coherent and almost performable in its current form.

The existence of this fragment was first noted by Gustav Nottebohm in his Zweite Beethoveniana (1872, p. 208), although he did not make any connection to Op. 126 at the time. It was Willy Hess who later designated the work as a Bagatelle, including it in his 1965 supplement to the complete works of Beethoven (Supplemente zur Gesamtausgabe, Vol. IX).

Musically, the Bagatelle exemplifies Beethoven’s late style, marked by a remarkable economy of means, lyrical introspection, and structural clarity. Despite its compactness, the fragment showcases a level of thematic development and harmonic sophistication characteristic of Beethoven’s mature piano works, particularly his miniatures. The briefness of the piece does not diminish its depth; rather, it encapsulates the qualities of his late compositional voice in a distilled form.

Scholarly analysis of this fragment, particularly by musicologist Jos van Zanden in his 1986 article “Beethovens Bagatellen op. 126: Bemerkungen zu ihrer Entstehung” (Die Musikforschung, Vol. XXXIX, No. 1, pp. 13–17), suggests that Hess 57 might have served as an early draft or a discarded idea in the creative process surrounding Op. 126. This connection further enhances its significance within the context of Beethoven’s compositional evolution, offering insights into his approach to thematic and structural development during his final years.

In recent years, the Bagatelle has been revived by pianist Antonietta Cappelli, who incorporated the piece into her project “La ricerca diventa Arte” (“Research Becomes Art”), an initiative dedicated to bringing Beethoven’s lesser-known works to a broader audience. Cappelli’s interpretation, which has been featured on the Beethoven Music Research Center’s official page, seeks to give new life to this fragment, highlighting its musical value and its place within Beethoven’s rich and varied late output.