The Planets, Op. 32, is a seven-movement orchestral suite by the English composer Gustav Holst, written between 1914 and 1916. Each movement of the suite is named after a planet of the Solar System and its corresponding astrological character as defined by Holst. With the exception of Earth, which is not observed in astrological practice, all the planets are represented.
From its premiere to the present day, the suite has been enduringly popular, influential, widely performed and the subject of numerous recordings. However, it had a protracted birth. There were four performances between September 1918 and October 1920, but they were all either private (the first performance, inLondon) or incomplete (two others in London and one in Birmingham). The premiere was at the Queen's Hall on 29 September 1918, conducted by Holst's friend Adrian Boult to an invited audience of about 250 people. The first complete public performance was given in London on 15 November 1920, with theLondon Symphony Orchestra conducted by Albert Coates.