En chamade

En chamade (French: "to sound a parley") refers to powerfully voiced reed stops in a pipe organ that have been mounted horizontally, rather than vertically, in the front of the organ case, projecting out into the church or concert hall.

[1] They produce a commanding, loud trumpet-like tone, used for fanfares and solos.

[note 1] Another example, first referred to as a trompette 'en chamade' is located in an organ built in Provence in 1772.

The term was popularized by Aristide Cavaillé-Coll in his organs of the nineteenth century.

Chamade was a trumpet call designed to be heard across the battlefield in the enemy camp, (announcing a desire to surrender).