D major in the context of A (musical note)

The Symphony No. 9 in D minor, Op. 125, is a choral symphony, the final complete symphony by Ludwig van Beethoven, composed between 1822 and 1824. It was first performed in Vienna on 7 May 1824. The symphony is regarded by many critics and musicologists as a masterpiece of Western classical music and one of the supreme achievements in the history of music. One of the best-known works in common practice music, it stands as one of the most frequently performed symphonies in the world.

The Ninth was the first example of a major composer scoring vocal parts in a symphony. The final (4th) movement of the symphony, commonly known as the Ode to Joy, features four vocal soloists and a chorus in the parallel key of D major. The text was adapted from the "An die Freude (Ode to Joy)", a poem written by Friedrich Schiller in 1785 and revised in 1803, with additional text written by Beethoven. In the 20th century, an instrumental arrangement of the chorus was adopted by the Council of Europe, and later the European Union, as the Anthem of Europe.

The Violin Concerto in D major, Op. 35 was the only concerto for violin composed by Pyotr Ilyich Tchaikovsky. Composed in 1878, it is one of the best-known violin concertos.

The concerto was composed in Clarens, Switzerland, where Tchaikovsky was recovering from the fallout of his ill-fated marriage. The concerto was influenced by Édouard Lalo's Symphonie espagnole and was composed with the help of Tchaikovsky's pupil and probable former lover, Iosif Kotek. Despite Tchaikovsky's original intention to dedicate the work to Kotek, he instead dedicated it to Leopold Auer due to societal pressures. Auer, however, refused to perform it, and the premiere was given by Adolph Brodsky in 1881 to mixed reviews. The piece, which Tchaikovsky later rededicated to Brodsky, has since become a staple of the violin repertoire. The concerto has three movements, is scored for solo violin and orchestra, and typically runs for about 35 minutes.

D minor is a minor scale based on D, consisting of the pitches D, E, F, G, A, B♭, and C. Its key signature has one flat. Its relative major is F major and its parallel major is D major.

The D natural minor scale is:

The Symphony No. 5 by Gustav Mahler was composed in 1901 and 1902, mostly during the summer months at Mahler's holiday cottage at Maiernigg. Among its most distinctive features are the trumpet solo that opens the work with a rhythmic motif similar to the opening of Ludwig van Beethoven's Symphony No. 5, the horn solos in the third movement and the frequently performed Adagietto.

The musical canvas and emotional scope of the work, which lasts nearly 70 minutes, are huge. The symphony is sometimes described as being in the key of C♯ minor since the first movement is in this key (the finale, however, is in D major). Mahler objected to the label: "From the order of the movements (where the usual first movement now comes second) it is difficult to speak of a key for the 'whole Symphony', and to avoid misunderstandings the key should best be omitted."

Although early advocates such as Robert Kajanus, Sir Thomas Beecham, and Serge Koussevitzky had conducted many of Sibelius's symphonies for gramophone in the 1930s and 1940s, none of these Sibelians recorded all seven. Instead, the earliest complete traversal dates to 1953, four years before the composer's death on 20 September 1957; it is by Sixten Ehrling and the Stockholm Radio Orchestra, recorded from 1952 to 1953 for the Swedish label Metronome Records (released by Mercury Records in the United States). Ehrling had outpaced Anthony Collins and the London Symphony Orchestra, whose cycle—recorded from 1952 to 1955 on Decca Records—was concurrent with Ehrling's but arrived second. Since these two pioneering examples, the Sibelius cycle has, as of May 2025, been recorded an additional 49 times. The most recently completed (51st) cycle, finished in 2025, is by Jukka-Pekka Saraste and the Helsinki Philharmonic Orchestra; an additional two projected cycles are in progress, according to press releases.