IN: Iron Maiden are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris. The band's discography has grown to thirty-eight albums, including sixteen studio albums, twelve live albums, four EPs, and seven compilations. Pioneers of the new wave of British heavy metal, Iron Maiden achieved initial success during the early 1980s. After several line-up changes, the band went on to release a series of UK and US platinum and gold albums, including 1982's The Number of the Beast, 1983's Piece of Mind, 1984's Powerslave, 1985's live release Live

On New Year's Eve 1978, Iron Maiden recorded a demo, consisting of four songs, at Spaceward Studios in Cambridge. Hoping the recording would help them secure more gigs, the band presented a copy to Neal Kay, then managing a heavy metal club called "Bandwagon Heavy Metal Soundhouse", located in Kingsbury Circle, northwest London. Upon hearing the tape, Kay began playing the demo regularly at the Bandwagon, and one of the songs, "Prowler", eventually went to No. 1 in the Soundhouse charts, which were published weekly in Sounds magazine. A copy was also acquired by Rod Smallwood, who soon became the band's manager, and, as Iron Maiden's popularity increased, they released the demo on their own record label as The Soundhouse Tapes, named after the club. Featuring only three tracks (one song, "Strange World", was excluded as the band were unsatisfied with its production) all five thousand copies were sold out within weeks.  In December 1979, the band secured a major record deal with EMI and asked Dave Murray's childhood friend Adrian Smith of Urchin to join the group as their second guitarist. Smith declined as he was busy with his own band, Urchin, so Iron Maiden hired guitarist Dennis Stratton instead. Shortly afterwards, Doug Sampson left due to health issues and was replaced by ex-Samson drummer Clive Burr at Stratton's suggestion on 26 December. Iron Maiden's first appearance on an album was on the Metal for Muthas compilation (released on 15 February 1980) with two early versions of "Sanctuary" and "Wrathchild". The release led to an ensuing tour which featured several other bands linked with the new wave of British heavy metal.  Iron Maiden's eponymous 1980 release, Iron Maiden, debuted at No. 4 in the UK Albums Chart. In addition to the title track (a live version of which would be one of the first music videos aired on MTV), the album includes other early favourites such as "Running Free", "Transylvania", "Phantom of the Opera", and "Sanctuary" - which was not on the original UK release but appeared on the US version and subsequent remasters. The band set out on a headline tour of the UK, before opening for Kiss on their 1980 Unmasked Tour's European leg as well as supporting Judas Priest on select dates. Iron Maiden also appeared, to much acclaim, at the Reading Festival 1980. They were second to top of the bill on the Saturday, with UFO headlining. After the Kiss tour, Dennis Stratton was dismissed from the band as a result of creative and personal differences, and was replaced by Adrian Smith in October 1980.  In 1981, Iron Maiden released their second album, entitled Killers. Containing many tracks written prior to their debut release, only two new songs were written for the record: "Prodigal Son" and "Murders in the Rue Morgue" (the latter's title was taken from the short story by Edgar Allan Poe). Unsatisfied with the production on their debut album, the band hired veteran producer Martin Birch, who would go on to work for Iron Maiden until his retirement in 1992. The record was followed by the band's first world tour, which included their debut performance in the United States, opening for Judas Priest at The Aladdin Casino, Las Vegas.
QUESTION: was their album successful?
IN: A burlesque is a literary, dramatic or musical work intended to cause laughter by caricaturing the manner or spirit of serious works, or by ludicrous treatment of their subjects. The word derives from the Italian burlesco, which, in turn, is derived from the Italian burla - a joke, ridicule or mockery. Burlesque overlaps in meaning with caricature, parody and travesty, and, in its theatrical sense, with extravaganza, as presented during the Victorian era. "Burlesque" has been used in English in this literary and theatrical sense since the late 17th century.

The word first appears in a title in Francesco Berni's Opere burlesche of the early 16th century, works that had circulated widely in manuscript before they were printed. For a time, burlesque verses were known as poesie bernesca in his honour. 'Burlesque' as a literary term became widespread in 17th century Italy and France, and subsequently England, where it referred to a grotesque imitation of the dignified or pathetic. Shakespeare's Pyramus and Thisbe scene in Midsummer Night's Dream and the general mocking of romance in Beaumont and Fletcher's The Knight of the Burning Pestle were early examples of such imitation.  In 17th century Spain, playwright and poet Miguel de Cervantes ridiculed medieval romance in his many satirical works. Among Cervantes' works are Exemplary Novels and the Eight Comedies and Eight New Interludes published in 1615. The term burlesque has been applied retrospectively to works of Chaucer and Shakespeare and to the Graeco-Roman classics.  Burlesque was intentionally ridiculous in that it imitated several styles and combined imitations of certain authors and artists with absurd descriptions. In this, the term was often used interchangeably with "pastiche", "parody", and the 17th and 18th century genre of the "mock-heroic". Burlesque depended on the reader's (or listener's) knowledge of the subject to make its intended effect, and a high degree of literacy was taken for granted.  17th and 18th century burlesque was divided into two types: High burlesque refers to a burlesque imitation where a literary, elevated manner was applied to a commonplace or comically inappropriate subject matter as, for example, in the literary parody and the mock-heroic. One of the most commonly cited examples of high burlesque is Alexander Pope's "sly, knowing and courtly" The Rape of the Lock. Low burlesque applied an irreverent, mocking style to a serious subject; an example is Samuel Butler's poem Hudibras, which described the misadventures of a Puritan knight in satiric doggerel verse, using a colloquial idiom. Butler's addition to his comic poem of an ethical subtext made his caricatures into satire.  In more recent times, burlesque true to its literary origins is still performed in revues and sketches. Tom Stoppard's 1974 play Travesties is an example of a full-length play drawing on the burlesque tradition.
QUESTION:
What was the development