Solos for Flute (lost), K. 33a
沃尔夫冈·阿马德乌斯·莫扎特
Mozart’s Solos for Flute (lost), K. 33a, are a reported set of juvenile pieces said to have been written in 1766 during the family’s stay in Lausanne, when he was about ten. No music survives, and the attribution itself is often treated as doubtful, so the work can only be outlined in the most general terms from catalogue references.
Mozart's Life at the Time
In 1766, Wolfgang Amadeus Mozart (1756–1791) was traveling through French-speaking Switzerland with his family, and Lausanne is among the stops associated with a handful of small occasional works from this tour [1]. K. 33a is transmitted not through a surviving manuscript but through later cataloguing, and its ascription to Mozart has therefore remained uncertain—best understood as a report of what the ten-year-old may have written rather than a securely documented score [2].
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Musical Character
Because no autograph, copy, or printed source is known to survive, details such as key, number of movements, and even precise scoring cannot be checked directly. The reference tradition describes the items as flute solos with basso (i.e., a melodic flute line supported by a bass part in the contemporary basso/basso continuo sense), suggesting straightforward, singable phrases and functional harmony suitable for domestic music-making and for Mozart’s own apprenticeship in writing idiomatically for winds [2]. In developmental terms, K. 33a—if genuine—would belong to the same travel-period environment in which Mozart absorbed local styles quickly and produced short, practical pieces for the musicians immediately around him.
[1] Köchel catalogue table entry listing K. 33a as “Solos for Flute (lost)”, dated 1766, Lausanne.
[2] The Cambridge Mozart Encyclopedia index entry for K. 33a: “Solos for flute and basso (lost)”.