Gustav Theodore Holst (born Gustavus Theodore von Holst, 21 September 1874 – 25 May 1934) was an English composer. He is most famous for his orchestral suite The Planets.

His early works show the influence of Grieg, Wagner,Richard Strauss and fellow student Ralph Vaughan Williams, and later, through Vaughan Williams, the music of Ravel. The combined influence of Ravel, Hindu spiritualism and English folk tunes enabled Holst to free himself of the influence of Wagner and Strauss and to forge his own style. Holst's music is well known for unconventional use of metre and haunting melodies.

Holst composed almost 200 works, including operas, ballets, choral hymns and songs. An enthusiastic educator, Holst became music master at St Paul's Girls' School in 1905 and director of music at Morley College in 1907, continuing in both posts until retirement. He also taught singing at Wycombe Abbey School from 1912 until 1917.

He was the brother of Hollywood actor Ernest Cossart and father of the composer and conductor Imogen Holst, who wrote a biography of him in 1938.

The Organ was a Canadian indie pop band formed in 2001 in Vancouver, British Columbia. They officially broke up on December 7, 2006, due to illness and personal conflicts in the band.

The Organ were conceived in 2001 by frontwoman Katie Sketch, born Katie Ritchie, in Vancouver, BC. Sketch's musical training started at the age of three, when she began classical training on the violin. Her childhood was spent largely in ignorance of the underground sounds of The Smiths, The Cure, and Joy Division, whom The Organ would later often be favorably compared to. "Tiffany and Bon Jovi - that was my take on ’80s music."

Sketch has said of the time of the formation of the band, when she and the band members were in their early to mid-twenties. "I was in a musical lull, I couldn’t stand what I was listening to," naming Sleater-Kinney as one example. “The local scene was also pretty shitty, and of course the radio was brutal. Then, by total fluke, my mom’s friend’s husband, Ron Obvious, hired me to help with the audio wiring for a studio he was building for Bryan Adams.” Obvious introduced Katie to the world of independent music, and what she calls "that ’80s sound." He created mix-tapes of bands he thought she’d appreciate as a violinist (Roxy Music, Ultravox) and singers with an "amazing natural vocal pitch" (Siouxsie and the Banshees, Nina Hagen, Kate Bush)). This job also led Sketch to Tara Nelson, the engineer who would later record the Organ’s first EP.