Fischietto (m)
(with) definite article: ilmedium drone, adjustable: conical, straight, bell, cavity? / double reed
Usually its bore is cylindrical, but of two different diametres (increasing towards the bell; ➺ Telescope-like bore); Rarely conical; Its pitch is the same as the highest tone of the Destra (4 "palmi": a♭¹; 6 "palmi": d¹; i.e. 1 octave higher than the Trombo).
NB: Example(s) to be replaced with staff-notation.
Gala, Giuseppe Michele: La zampogna in Campania. In: La zampogna: gli aerofoni a sacco in Italia (2005), II, p.11.