IN: An orchestra ( or US: ; Italian: [or'kestra]) is a large instrumental ensemble typical of classical music, which mixes instruments from different families, including bowed string instruments such as violin, viola, cello and double bass, as well as brass, woodwinds, and percussion instruments, each grouped in sections. Other instruments such as the piano and celesta may sometimes appear in a fifth keyboard section or may stand alone, as may the concert harp and, for performances of some modern compositions, electronic instruments. The term orchestra derives from the Greek orkhestra (orchestra), the name for the area in front of a stage in ancient Greek theatre reserved for the Greek chorus. A full-size orchestra may sometimes be called a symphony orchestra or philharmonic orchestra.

Apart from the core orchestral complement, various other instruments are called for occasionally. These include the flugelhorn and cornet. Saxophones and classical guitars, for example, appear in some 19th- through 21st-century scores. While appearing only as featured solo instruments in some works, for example Maurice Ravel's orchestration of Modest Mussorgsky's Pictures at an Exhibition and Sergei Rachmaninoff's Symphonic Dances, the saxophone is included in other works, such as Ravel's Bolero, Sergei Prokofiev's Romeo and Juliet Suites 1 and 2, Vaughan Williams' Symphonies No.6 and 9 and William Walton's Belshazzar's Feast, and many other works as a member of the orchestral ensemble. The euphonium is featured in a few late Romantic and 20th-century works, usually playing parts marked "tenor tuba", including Gustav Holst's The Planets, and Richard Strauss's Ein Heldenleben. The Wagner tuba, a modified member of the horn family, appears in Richard Wagner's cycle Der Ring des Nibelungen and several other works by Strauss, Bela Bartok, and others; it has a prominent role in Anton Bruckner's Symphony No. 7 in E Major. Cornets appear in Pyotr Ilyich Tchaikovsky's ballet Swan Lake, Claude Debussy's La Mer, and several orchestral works by Hector Berlioz. Unless these instruments are played by members "doubling" on another instrument (for example, a trombone player changing to euphonium or a bassoon player switching to contrabassoon for a certain passage), orchestras typically hire freelance musicians to augment their regular ensemble.  The 20th-century orchestra was far more flexible than its predecessors. In Beethoven's and Felix Mendelssohn's time, the orchestra was composed of a fairly standard core of instruments, which was very rarely modified by composers. As time progressed, and as the Romantic period saw changes in accepted modification with composers such as Berlioz and Mahler; some composers used multiple harps and sound effect such as the wind machine. During the 20th century, the modern orchestra was generally standardized with the modern instrumentation listed below. Nevertheless, by the mid- to late 20th century, with the development of contemporary classical music, instrumentation could practically be hand-picked by the composer (e.g., to add electric instruments such as electric guitar, electronic instruments such as synthesizers, non-Western instruments, or other instruments not traditionally used in orchestra).  With this history in mind, the orchestra can be analyzed in five periods: the Baroque era, the Classical music period, early/mid-Romantic music era, late-Romantic/early 20th century music and 21st century era. The first is a Baroque orchestra (i.e., J.S. Bach, Handel, Vivaldi), which generally had a smaller number of performers, and in which one or more chord-playing instruments, the basso continuo group (e.g., harpsichord or pipe organ and assorted bass instruments to perform the bassline), played an important role; the second is a typical classical period orchestra (e.g., early Beethoven along with Mozart and Haydn), which used a smaller group of performers than a Romantic music orchestra and a fairly standardized instrumentation; the third is typical of an early/mid-Romantic era (e.g., Schubert, Berlioz, Schumann); the fourth is a late-Romantic/early 20th century orchestra (e.g., Wagner, Brahms, Mahler, Stravinsky), to the common complement of a 2010-era modern orchestra (e.g., Adams, Barber, Aaron Copland, Glass, Penderecki).
QUESTION: What instruments were added?
IN: Skunk Anansie are a British rock band whose members include Skin (lead vocals, guitar), Cass (guitar, bass, backing vocals), Ace (guitar, backing vocals) and Mark Richardson (drums and percussion). Skunk Anansie formed on 12 February 1994, disbanded in 2001 and reformed in 2009. The name "Skunk Anansie" is taken from Akann folk tales of Anansi the spider-man of Ghana, with "Skunk" added to "make the name nastier". They have released six studio albums: Paranoid & Sunburnt (1995), Stoosh (1996), Post Orgasmic Chill (1999), Wonderlustre (2010), Black Traffic (2012) and Anarchytecture (2016); one compilation album, Smashes and Trashes (2009); and several hit singles, including "Charity", "Hedonism", "Selling Jesus" and "Weak".

Mark Richardson confirmed reports that the band was reforming in an interview with Drummer Magazine (November 2008 issue), and said that the band planned to release a "best of" compilation as well as new material. Ace later set up an official page for the band on MySpace. On 2 and 3 April 2009, two shows took place at the Monto Water Rats (the former venue of the Splash Club) in London, under the alias SCAM (Skin, Cass, Ace, Mark) and sold out in 20 minutes. The band began their "Greatest Hits" tour on Friday, 9 October 2009 at the Ancienne Belgique in Brussels, with other dates across Europe. It was their first actual tour in eight years. A "greatest hits" album, Smashes and Trashes, was released 2 November 2009. It is a 15-track career-embracing album and includes three brand new tracks: "Because of You", "Tear the Place Up" and "Squander". A best-of remixes companion album was also released digitally.  On 3 July 2009, the music video for "Tear the Place Up" was presented exclusively on MySpace, before on 10 August 2009, a new video for "Because of You" was presented exclusively on Kerrang.com. It was released 14 September 2009 in the UK and was the first single to be released from Smashes and Trashes. The single was a top 10 hit in Italy, before its follow-up "Squander" was a top 75 success in Flanders, the Dutch-speaking part of Belgium.  Their fifth album Wonderlustre was released internationally on 13 September 2010, preceded by the first single "My Ugly Boy", which was released in the UK on 16 August 2010 and in Europe July/August. The video for "My Ugly Boy" was presented exclusively on Kerrang.com on 23 July 2010. Wonderlustre reached number one on the Italian albums chart on 1 October 2010 and placed in the top 10 in charts all over Europe including in Germany, the Netherlands, France and Poland.  In May 2010 they were a supporting act for Rammstein, during two concerts in Berlin. The second single from Wonderlustre, "Over the Love" was released internationally in November 2010. In November 2010 the band played on Idolos, a Portuguese equivalent to the UK's Pop Idol.  "You Saved Me", the third single from Wonderlustre was released internationally in March 2011.
QUESTION:
who are part of the band