PIPES
The sound of an organ is built up in layers using different lengths of pipes, the most common being 32', 16', 8', 4' and 2', each an octave apart. Mixture and mutation stops provide harmonics for drama and spicy solo effects. There are three basic types of pipe:
Principal: Also known as diapasons, these are traditionally-shaped metal pipes on the outside of an organ case – they provide the basic church organ ‘sound’.
Flute: Wooden pipes with various names, including bourdon, claribel, Rohrflöte and, of course, flute. A soft, mellow, rounded tone.
Reed: From posaunes in the pedals to oboes on the swell organ (see manuals), reed pipes incorporate a vibrating brass tongue, as opposed to flue pipes with no moving parts (see principal and flute).
MANUALS
Organs have…
