Piano Concerto No. 27 (Mozart)

• 1. Manuscript Dating Controversy

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  The manuscript of Wolfgang Amadeus Mozart's Piano Concerto No. 27 bears the date the 5th of January 1791. This specific calendar entry suggests a final composition moment near the end of his life. However, paper analysis by musicologist Alan Tyson reveals a different timeline. Tyson determined that Mozart used this specific sheet music paper between December 1788 and February 1789. Such findings imply the composer wrote the work years before the handwritten date indicates. Simon Keefe supports the earlier theory, stating the piece dates from 1788. In contrast, Wolfgang Rehm argues for a later creation period in late 1790 and early 1791. Cliff Eisen has examined these conflicting views within his review of the published facsimile score. The discrepancy remains unresolved despite decades of scholarly debate.

• 2. Premiere Performance History

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  Historical records point to a concert held on the 4th of March 1791 in Jahn's Hall as a potential first performance. Mozart himself may have played the piano part alongside clarinetist Joseph Beer during this event. If true, this appearance marked his last public concert before falling ill in September 1791. He died shortly after on the 5th of December 1791. An alternative scenario involves his pupil Barbara Ployer premiering the work at the Palais Auersperg. This venue hosted a public concert in January 1791 where she might have taken the solo role. Dexter Edge documented these possibilities in his essay regarding Mozart's reception in Vienna between 1787 and 1791. No definitive record confirms which pianist opened the concerto to an audience that year.

• 3. Orchestral Scoring Analysis

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  Mozart scored this piece with flute, two oboes, two bassoons, and two horns in B-flat. A solo piano part sits atop strings without trumpets or timpani. This instrumentation creates a thinner texture than found in other late Mozart concertos. Most of his final works include brass instruments like trumpets and percussion like timpani for grandeur. The exception is Piano Concerto No. 23, which shares this lighter palette. The absence of heavy brass gives the orchestra a more intimate sound throughout the three movements. Critics note how this choice distinguishes the work from its contemporaries within the genre.

• 4. Thematic and Structural Features

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  All three movements reside in a major key yet suggest minor tonalities through specific thematic choices. The second theme of the first movement appears in the dominant minor key. A remote minor key emerges during the early development section of that same movement. The tonic minor key surfaces in the middle of the Larghetto movement. These shifts create tension within an otherwise bright framework. Simon Keefe highlighted these distinctive character elements and stylistic experiments compared to other concerti. Mozart wrote down his own cadenzas for both the first and third movements rather than leaving them improvised. Such deliberate structural decisions reflect a unique approach to form and emotional depth.

• 5. Connection to K. 596

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  The principal theme from the finale reappears in a later song composition by Mozart. This melody serves as the basis for "Sehnsucht nach dem Frühling," cataloged as K. 596. The song follows the concerto immediately in the Köchel catalogue sequence. This reuse demonstrates how Mozart repurposed material across different genres near the end of his career. The connection links two distinct works through shared melodic DNA. Scholars observe this transition as evidence of his creative process during his final year. The thematic bond remains a notable feature connecting the concerto to its successor piece.