Editing Pipe organ (section)

===Romantic period===
During the Romantic period, the organ became more symphonic, capable of creating a gradual crescendo. This was made possible by voicing stops in such a way that families of tone that historically had only been used separately could now be used together, creating an entirely new way of approaching organ registration. New technologies and the work of organ builders such as [[:de:Eberhard Friedrich Walcker|Eberhard Friedrich Walcker]], [[Aristide Cavaillé-Coll]], and [[Henry Willis & Sons|Henry Willis]] made it possible to build larger organs with more stops, more variation in sound and timbre, and more divisions.<ref name="England" /> For instance, as early as in 1808, the first 32' contre-bombarde was installed in the great organ of Nancy Cathedral, France. Enclosed divisions became common, and registration aids were developed to make it easier for the organist to manage the great number of stops. The desire for louder, grander organs required that the stops be voiced on a higher wind pressure than before. As a result, a greater force was required to overcome the wind pressure and depress the keys. To solve this problem, Cavaillé-Coll configured the English "[[Barker lever]]" to assist in operating the key action. This is, essentially, a servomechanism that uses wind pressure from the air plenum, to augment the force that is exerted by the player's fingers.<ref>Randel "Organ", 586.</ref><!--Combination actions were developed to aid the organist in carrying out the multitude of registration changes required to play Romantic music.{{Citation needed|date=May 2008}}-->

Organ builders began to prefer specifications with fewer mixtures and high-pitched stops, more 8′ and 16′ stops and wider pipe scales.<ref>"The decline of mixtures," in George Laing Miller (1913), ''[http://www.gutenberg.org/files/21204/21204-h/21204-h The Recent Revolution in Organ Building] {{Webarchive|url=https://web.archive.org/web/20110917040223/http://www.gutenberg.org/files/21204/21204-h/21204-h |date=17 September 2011 }}''. Retrieved on 7 July 2009.</ref> These practices created a warmer, richer sound than was common in the 18th century. Organs began to be built in concert halls (such as the organ at the [[Trocadéro, Paris|Palais du Trocadéro]] in Paris), and composers such as [[Camille Saint-Saëns]] and [[Gustav Mahler]] used the organ in their orchestral works.

<gallery widths="200px" heights="200px">
File:Yoke.JPG|A typical modern 20th-century console, located in [[St Patrick's Cathedral, Dublin]]
File:Basilica_of_Saint_Denis_Organ,_Paris,_France_-_Diliff.jpg|The organ of the Cathedral-[[Basilica of Saint-Denis]] (France), first organ of [[Aristide Cavaille-Coll]] containing numerous innovations, and especially the first [[Barker lever]].
File:Buffet grand-orgue.jpg|[[Great organ of Nancy Cathedral|The Cavaillé-Coll organ of the cathedral of Nancy, featured the first 32' Bombarde in France.]] (France)
</gallery>