Editing Oboe (section)

=== Classical ===
The [[Classical music era|Classical]] period brought a regular oboe whose bore was gradually narrowed, and the instrument became outfitted with several keys, among them those for the notes D{{Music|sharp}}, F, and G{{Music|sharp}}. A key similar to the modern octave key was also added called the "slur key", though it was at first used more like the "flick" keys on the modern German [[bassoon]].{{sfn|Haynes|Burgess|2016}} Only later did French instrument makers redesign the octave key to be used in the manner of the modern key (i.e. held open for the upper register, closed for the lower). The narrower bore allows the higher notes to be more easily played, and composers began to use the oboe's upper register more often in their works. Because of this, the oboe's [[tessitura]] in the Classical era was somewhat broader than that found in Baroque works. The range for the Classical oboe extends from C<sub>4</sub> to F<sub>6</sub> (using the [[scientific pitch notation]] system), though some German and Austrian oboes are capable of playing one half-step lower.

Several Classical-era composers wrote concertos for oboe. [[Wolfgang Amadeus Mozart|Mozart]] composed both the solo concerto in C major K. 314/285d and the lost original of Sinfonia Concertante in E{{music|flat}} major K. 297b, as well as a fragment of F major concerto K. 417f. [[Haydn]] wrote both the Sinfonia Concertante in B{{music|flat}} Hob. I:105 and the spurious concerto in C major Hob. VIIg:C1. [[Beethoven]] wrote the F major concerto, Hess 12, of which only sketches survive, though the second movement was reconstructed in the late 20th century). Numerous other composers including [[Johann Christian Bach]], [[Johann Christian Fischer]], [[Jan Antonín Koželuh]], and [[Ludwig August Lebrun]] also composed pieces for the oboe. Many solos exist for the regular oboe in chamber, symphonic, and operatic compositions from the Classical era.