Piano Concerto No. 4 (Saint-Saëns)

Piano Concerto No. 4 in C minor, Op. 44 by Camille Saint-Saëns, is the composer's most structurally innovative piano concerto. In one sense it is structured like a four-movement symphony, but these are grouped in pairs. That is, the piece is divided into two parts, each of which combines two main movements (I. A moderate-tempo Theme and Variations in C Minor; II. A slower, related Theme and Variations in Ab Major; III. Scherzo in C Minor; IV. Finale in C Major). However, in each part there is a bridge-like transitional section, between the two main "movements" – for example, a fugal Andante in part II functions as an interlude between the two main triple-meter sections.

It begins with a gently mischievous chromatic subject, heard in dialogue between the strings and piano soloist, and continues in a creative thematic development similar to Saint-Saëns' third symphony. The composer demonstrates brilliant skill in employing the piano and orchestra almost equally. In the Andante, he introduces a hymn-like theme with the woodwinds (also strikingly similar to the tune of the third symphony's final section), and uses this as a platform on which he builds a series of variations before bringing the movement to a quiet close.

The Allegro vivace begins as a playful and cunning scherzo (although still in C minor), deriving its main theme from the original chromatic subject in the beginning of the first movement. There is a bold switch to 6/8 time, and the piano leads the orchestra into a new brief but energetic theme. Eventually the orchestra moves into a lush Andante, recapitulating the chorale-style melody. Rather suddenly, the piano climbs up to a flurry of double octave trills and a climactic trumpet fanfare, leading to the jubilant finale based once more on the hymn theme played at triple time. The concerto concludes with the piano, in cadenza-like cascades, guiding the orchestra to a fortissimo close.

The piano concerto was premièred on October 31, 1875, at the Théâtre du Châtelet of Paris, with the composer as the soloist. The concerto is dedicated to Anton Door, a professor of piano at the Vienna Conservatory. It continues to be one of Saint-Saëns' most popular piano concertos, second only to the Piano Concerto No. 2 in G minor. This highly inventive work, along with many others, does much to refute the caricature of a purely reactionary Saint-Saëns.

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