The Chamber Symphony Suanluang Rama IX is a program music describing the beauty of the Royal Garden of King Rama IX. The composition was written to celebrate the auspicious occasion of His Majesty the King’s 7th cycle birthday anniversary on December 5th, 2011. The composition, written for a chamber orchestra, is mainly in the tonal system and divided into 2 movements. The first movement in a sonata form presents main theme while the second movement presents 6 variations of the theme from the first movement.