Symphony

A symphony is an extended composition for orchestra, usually built from multiple contrasting movements organized around related keys. The form took shape in the early eighteenth century, growing out of the Italian opera sinfonia, a three-movement fast-slow-fast overture used to open operas. Johann Stamitz and his Mannheim colleagues added a dance movement, typically a minuet, to that three-part pattern, establishing the four-movement template of a sonata-form opening movement, a slow movement, a minuet and trio, and a fast finale. Joseph Haydn, who wrote over a hundred symphonies across a forty-year career, is credited as the form's defining figure for his contributions to its harmonic language, key relationships, and orchestral color, a title that somewhat overstates a single composer's role but accurately marks his transformative influence; Wolfgang Amadeus Mozart and Ludwig van Beethoven inherited and extended his template. Beethoven's Ninth Symphony, first performed in Vienna on 7 May 1824, stretched the form's own definition by adding chorus and vocal soloists to the finale, an innovation that inspired further symphonic experimentation through the nineteenth century.