Bordon (m)
(with) definite article: lolow drone, adjustable: cylindrical, straight, no bell, cavity? / single reed
2 octaves lower than the tonic of the Auboé (chanter); With an internal extension (a metallic tube in 8-shape) at the base of the pipe.
Leydi, Roberto: La zampogna in Europa. Como, 1979, p.54 (type only, no term).
Mir Tierz, Pedro: Pasado y presente de la gaita de boto aragonesa. In: Anuario da Gaita 1993 (8), p.30.