Symphony no. 9 in d, op. 125 “Choral”

Symphony No. 9 in D minor, Op. 125, 'Choral' is a symphony by Ludwig van Beethoven, completed in 1824. A late-period work, it expanded the boundaries of the symphonic form by introducing vocal soloists and a chorus in the final movement, integrating orchestral and vocal forces and employing extended formal development and thematic transformation that mark a pivotal point in Beethoven's compositional trajectory and in the history of the symphony.