Included among Antonio Vivaldi's 500-plus concertos are a handful of works calling for the instrumentation of a chamber sonata but that are cast in the form of a concerto. In these chamber concertos, the relative thickness of the instrumentation, rather then the alternation between soloists and ensemble, serves to articulate the standard solo/tutti contrasts upon which the Vivaldian concerto depends. In many of these works, a single instrument, often a flute or recorder, assumes the dominant role, with the other instruments adding countermelodies or accompanimental support. In the Concerto in D major, RV 94, however, Vivaldi alternately brings various instruments to the foreground of the musical texture. Scored for recorder, oboe, violin, bassoon, and continuo, this concerto spotlights all three treble instruments (rather than the recorder specifically), giving particular emphasis to the violin (which, in similar concertos, fills a mostly accompanimental role) and the recorder. The first movement opens with a tutti statement of the ritornello theme, a dotted figure that rises and falls along a simple, stepwise contour, then leaps up and descends in steps. Like many of Vivaldi's melodies, it fills out just three bars, lending it a sense of forward motion (as opposed to four-square modularity). A restatement of the opening motive, this time with an ascending consequent, followed by a lively syncopated figure, fills out the opening ritornello. This returns in fragments between the subsequent episodes, which alternately feature undulating arpeggio figures in the violin, rising sequences in the recorder, and eventually a pair of virtuosic duets featuring both instruments. Only in the last episode does the oboe participate in the featured exchanges. The oboe, as well as the continuo, rests entirely during the slow second movement. Here the recorder alone performs the elegant melody, with its wistful leaps and serene descents, while the violin plays quiet arpeggios (originally notated as simple chords) above the bassoon's bassline pulse. The treble instruments all share the spotlight in the finale, though the violin's soaring arpeggio figurations and the recorder's nimble triplet runs draw the most attention. As with much of Vivaldi's music, this composition is difficult to date, as it existed only in an undated manuscript copy during the composer's lifetime. Scholars generally place the work, as well as the other chamber concertos, in the last quarter century of the composer's life, at the Ospedale della Pietà, where it would have been performed by the talented young ladies under Vivaldi's charge there.

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