Gaita zumbal (f)
(with) definite article: lanames of bagpipes (&c.) in connection with their pitch only
From "zumbar" [to hum/buzz/drone/whizz]; Alternative name (➺ Gaita tumbal); NB: probably only used locally.
Jambrina Leal, Alberto: Panorama de la gaita de fole en Zamora, Castilla y Leon [sic]. In: Utriculus IX (34), aprile/giugno 2005, p.12.
ws (➺ Dictionaries, &c.]).