These pages comprise a dictionary of terms relating to the pipe organ. Please keep definitions to a few sentences, and do not include pictures or sound clips. When more space is needed for a term, a new page can be created for it.
Labial [adj.] labial pipes are flue pipes.
Ladegast, Friedrich (1818-1905) - German Romantic organ builder, studied with Cavaillé-Coll.
Languid [noun] a thick metal disk which separates the body of a flue pipe from the foot, tightly soldered to both except for a flattened portion at the mouth which, along with the lower lip, forms the windway.
Leathering [noun] 1. the practice of covering the upper lips of flue pipes with leather, so as to thicken the tone. 2. the practice of covering the shallots of reed pipes with thin leather, so as to make the tone smoother by providing the tongues with a softer surface to beat against.
Lefébure-Wély, Louis James Alfred (1817–1869) — French organist and composer. Preceded Widor as organist of the Saint Sulpice, Paris.
Lieblich Gedeckt [noun] - a soft-toned stopped flute stop. Usually made of wood, but also in metal.
Lingual [adj.] a lingual pipe is a reed pipe.
Lip [noun] the upper or lower portion of the mouth of a flue pipe.
Ludwigtone [noun] - a soft foundation stop with the pipes constructed in two separated air columns tuned differently as a celeste. This stop was invented by Holtkamp and Sparling, but was not considered a success due to the high cost of making it.