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A symphony is a long piece of music for full orchestra, traditionally divided into several contrasting sections called movements. By the late eighteenth century the standard design had four of them: a fast opening, a slow second movement, a dance-like third and a lively finale. Composers have stretched, shortened and rearranged that plan ever since, but it remains the starting point for understanding almost every symphony you will hear.
The word comes from a Greek term meaning an agreement or concord of sounds. The form itself grew partly out of the Italian opera overture, the sinfonia, which had three sections in a fast-slow-fast pattern. Over the eighteenth century, orchestral composers turned that short curtain-raiser into an independent concert piece, added a dance movement, and made each part longer and more serious.
Joseph Haydn is the figure most closely linked with this growth. He wrote more than a hundred symphonies, and sources differ on the exact count because of lost, doubtful and renumbered works. Mozart wrote dozens too. By the time Beethoven finished his ninth, the symphony had become the most prestigious thing an orchestral composer could attempt.
| Movement | Typical speed | Typical shape | What it does |
|---|---|---|---|
| 1 | Fast | Sonata form | Presents themes and argues with them |
| 2 | Slow | Song-like, variations or three parts | Offers lyrical contrast |
| 3 | Moderate to quick, in three beats | Minuet or scherzo, with a contrasting middle section | Brings in a dance feel |
| 4 | Fast | Sonata, rondo or a mix | Resolves the whole work |
Not every symphony follows this. Some have three movements, some five or more, and some change the order. The table describes a norm, not a law.
Most first movements are built in sonata form, which has three stages.
You do not need to know the theory to enjoy it. If you can recognise the first big tune when it comes back near the end, you have already heard the shape.
The slow movement is often the emotional centre. It might be a simple, singing melody, a theme with variations, or a three-part design in which the middle section contrasts with the outer ones.
The third movement began as a minuet, an aristocratic dance in three beats. Beethoven often replaced it with a faster, more rough-edged scherzo, the Italian word for “joke.” The movement usually has a central trio section before the opening music returns.
The finale brings the work home. It can be a sparkling race to the end, a rondo in which a main tune keeps returning, or a grand summation of everything that came before.
There is no fixed length. Classical-era works can be under half an hour, while some late Romantic symphonies run far longer. Mahler’s Third, for example, takes about 100 minutes in most performances and is among the longest symphonies performed regularly.
If you would like a place to begin, the compilation described on the albums page gathers well-known pieces by twelve composers, and the page on the Face Your Masters app is a light-hearted introduction to the personalities behind the music.
Four is the classic number, but three, five and more are common in later music. The count is a convention that composers have felt free to change.
A concerto features one or more solo instruments against the orchestra, while a symphony treats the orchestra as a whole. A symphony does not need a soloist.
No. The orchestra is the group of players, and the symphony is a piece of music written for it. Some orchestras are called “symphony orchestras” because that is the repertoire they play.
Beethoven’s Ninth added a choir and vocal soloists to the finale, and later composers followed the idea. Most symphonies are purely instrumental.
A symphony is best heard as a story told in four connected parts. Pick one, follow the main tunes, and the structure will become clear as you listen.
