A choral symphony is a musical composition for orchestra, choir, and sometimes solo vocalists that, in its internal workings and overall musical architecture, adheres broadly to symphonic musical form. The term "choral symphony" in this context was coined by Hector Berlioz when he described his Roméo et Juliette as such in his five-paragraph introduction to that work. The direct antecedent for the choral symphony is Ludwig van Beethoven's Ninth Symphony. Beethoven's Ninth incorporates part of the ode An die Freude, a poem by Friedrich Schiller, with text sung by soloists and chorus in the last movement. It is the first example of a major composer's use of the human voice on the same level as instruments in a symphony.

A symphony is an extended musical composition in Western classical music, most often for orchestra. Although the term has had many meanings from its origins in the ancient Greek era, by the late 18th century the word had taken on the meaning common today: a work usually consisting of multiple distinct sections or movements, often four, with the first movement in sonata form. Symphonies are almost always scored for an orchestra consisting of a string section, brass, woodwind, and percussion instruments which altogether number about 30 to 100 musicians. Symphonies are notated in a musical score, which contains all the instrument parts. Orchestral musicians play from parts which contain just the notated music for their own instrument. Some symphonies also contain vocal parts.