The symphony is in four
movements, marked as follows: {{Ordered list|list_style_type=upper-roman
I. Un poco sostenuto — Allegro The first movement is in sonata form with an extended introduction, featuring a drawn-out and highly elaborated variation of the movement's theme.
Introduction Unique among Brahms symphonies, the First Symphony is ushered in via a formal introduction (an 1862 score of the symphony originally started with the second, Allegro, section). After a processional "poco sostenuto" opening section featuring chaotic
syncopated rhythms underpinned by pulsating timpani, the woodwinds and
pizzicato strings play with thematic phrases to be fully explored in the following exposition. A short and stormy return to the original development, this time in the
dominant of G and supported by rolling timpani, is finally followed by further melodic introductions played by oboe, flute and cellos before resolving in a drawn-out transitional passage ending with a plucked G note in the cellos.
Exposition The exposition begins abruptly, echoing the introduction's plucked final note with an orchestral exclamation, followed by a short motto which leads to the main theme, which is initially played, stridently, by the violins. The overall mood is "savagely energetic" An extended transition leads to the arrival of the key of E major which in turn introduces the flowing and heart-easing second theme. This theme, which is related to the
motto used to open the movement, is carried out in the wind section, led by oboe and clarinet with support from the bassoon and eventually the French horns. Strong intervention from the violas ends this peaceful passage with a descending minor key sequence which opens to a new closing theme leading up to a final bombastic passage wrapping up the exposition. The score then calls for a full repeat, which requires an abrupt return to C minor.
Development The action in the development section begins with a full step descent into B major, and instability ensues as interplay between the "
eroica"
motif and phrases from the original theme are played off each other. A series of
modulations, each seeming to lead further away from the tonic, eventually leads the path back to the recapitulation. Starting with a murky rumble in the basses, the music gathers strength with a thrilling set of arpeggios in the violins with support from the brass, which repeat the "
eroica" motif with great alacrity. Finally, a "shocking digression" The symmetry within one section reflects the symmetry of the whole. A2 closes off the first major section with the clarinet stating the first theme, much as it did in the beginning, finishing with a transition to the trio.
Trio The Trio offers a change of key, as well as a change of time. The key moves to B major, an
enharmonic minor third away from A. This key movement balances with the C and D sections in F minor, also a minor third away from the home key but in the opposite direction. The time signature changes from a stately to a more pastoral and dancelike . The flute, oboe, and bassoon introduce a joyful melody in stepwise motion as in the A theme. The strings add a downward three-note
arpeggio. These two motives make up the bulk of the trio material. Restatement and development of those themes ensue until the brass and winds join for a final repeat of the melody. The second ending brings the orchestra back into time and to A3.
Return of the Allegretto A major difference between A3 and the earlier iterations of A is the lingering effect of the trio upon the movement. The monotone call from the opening of the trio melody appears over the clarinet melody in the flute, oboe, and bassoon. The rhythmic effect of triplets also invades the pure eighth-note world of the A theme, producing
polyrhythms. Instead of the
inversion of the theme we expect in the second phrase of A, the strings take over and offer an entirely different melody, but with essentially the same contour as the inversion. B2 occupies a significantly larger space of the reprise than it does in the previous Allegretto. It leads through an extended transition to the last, quiet statement of A in unison by the strings. Strings of dotted eighth notes end the movement proper with ideas from the B theme.
Coda The entry to the coda is marked
poco a poco più tranquillo and the movement ends with the gentle throbbing of triplets quoted from the trio section. The final few bars end somewhat abruptly with the downward arpeggio of the strings in the trio finishing on the downbeat of a new bar.
IV. Adagio — Più andante — Allegro non troppo, ma con brio — Più allegro As with the first movement, Brahms begins the final movement with a formal introduction in C minor. The finale, noted for its "vast scope" resolves all the tensions that the first movement had raised but was (magnificently) unable to dissipate. This was an assertion which irritated Brahms, but which he nevertheless acknowledged—"any
ass can see that". The theme is introduced in the violins and violas in alto register accompanied softly by horns and underpinned by pizzicato bass. After a few bars, the strings undulate through the second phrase with support from the bassoons. The woodwinds then pick up the song, with the strings in pizzicato accompaniment with gently trilling timpani. Finally, the full orchestra is unleashed in an energetic rendition which quickly fragments into transitional struggle. A passage led by arpeggio strings accompanied by bassoon and contrabassoon follows, including a brief variation of the Alphorn tune leading directly to the second theme. The second theme arrives as a falling four note figure related to the opening sequence and related to the Alphorn tune. The theme is introduced softly in the low strings, and elaborated upon by the violins. The second statement of the theme is joined first by the bassoons, followed by the flutes and oboes. After an energetic transitional passage in the strings, the oboe continues with an inverted variation of the theme in G major but eventually modulates to E minor, leading to the conclusion of the exposition.
Development, recapitulation, and coda The brief development section begins with a full restatement of the movement's main theme; the last time it will be heard in its entirety. This return of the main theme is 'richly scored', with full strings carrying the tune supported by 'punctuating chords' in the winds and gently rolling timpani. The oboe leads a transition to E-flat and a development-heavy section marked by key instability and fragmented restatements and elaborations of phrases in the melody. These are parried between the winds, led by flutes, and (softly) by the horns and bassoons with pizzicato strings providing additional momentum. An energetic restatement of the theme by the orchestra follows, but this quickly digresses into a section marked by string arpeggios and the arrival of a new thematic element for further development. A distinctive 'turning'
motif, derived from the main theme, appears in the winds, traded between flute and oboe with lush string harmony accompaniment. This is followed by an energetic passage, mainly in the strings, featuring falling arpeggio figures and elements of the main theme recited in C minor/F minor. The turning motif returns in a thrilling rendition led by the horns, followed by a nearly unrecognizable recapitulation of the first theme, with powerful syncopated descending figures which are traded between the strings and the wind instruments, over a bassline that is based on the "famous, grandly striding tune". This finally leads back to a rendition of the Alphorn theme, which begins tragically in the strings, but is recovered by a soothing harmonic motion initiated in the winds and followed by a major key restatement in the horns, this time without the shimmering strings of the introduction. The music begins to lose momentum as the strings play a descending procession that sounds as if it may lead to closing material for the section. Instead, the second theme immediately follows in a full recapitulation in C major, which is restated with little change from its original appearance in the exposition. However, after the theme's restatement is complete, a subtle change in the final passage avoids the key modulation taken in the exposition section, which allows the recapitulation to end in C minor. A lengthy coda follows without pause, which returns to C major, restates the chorale from the introduction, and ends with a triumphant pair of
plagal cadences. == Reception ==