No two Sibelius symphonies are alike, in character or in form, and each takes a new symphonic route from that of its predecessor. Cast in a single span lasting little more than 20 minutes, Sibelius’ Seventh Symphony is a miracle of compression and defies conventional analysis. As the great British music critic Ernest Newman succinctly put it in 1932, it has “no first and second, no egg and no chicken, in the matter of the idea and the form: each just is the other”.
It has a beginning and an end, but both are unconventional, the beginning rising in a C major scale from a quiet timpani rumble and almost immediately drifting off elsewhere, the end bringing a barely reached resolution that feels both inevitable and hard-won. The essence of the symphony, then, is of struggle, not so much a journey from darkness to light (conductor Colin Davis – ever the morbid pessimist – commented, “The last bar is like closing the coffin lid,”), as a search for the way out of a labyrinth. And it is a labyrinth of Sibelius’ intricate own making that expresses abstract emotions through miraculous musical processes.
Take, for instance, the work’s tonal shape. Although ostensibly in C major, much of the symphony after its first main climax seems to be an evasion of the ‘home’ note of C: it rarely falls on a strong beat and themes and motifs that feature it seem constantly to be trying to drag the music away from it by resolving on the notes either side. Three times an unchanging solo trombone surges out of the texture in an endeavour to assert the key, but only on its final attempt does resolution come, and is even then diverted away again before its last, desperate assertion: relief and fear expressed in the same notes.
Sibelius wasn’t the first composer to attempt a single-movement symphony. Schoenberg, in his First Chamber Symphony of 1906, for instance, had combined all four traditional movements in a continuous, interconnected whole in a manner ultimately derived from Liszt’s B minor Piano Sonata, but those ‘movements’ are all perceptible as entities in themselves. Sibelius’ genius was to combine all these elements – exposition, scherzo, slow movement, finale – into a single span of music such that it has no formal divisions: the music is in a constant state of metamorphosis from the first note to the last. While individual passages may have the character of a scherzo or of a slow movement, it is impossible to say that this is ‘the Scherzo’ or that ‘the Adagio’. Although it has its requisite focus points of climax and of repose, the overriding perception of its form is of continual fluidity, which gives it a sense of symphonic tension unique in the repertoire.