Trombo (m)
(with) definite article: illow drone, adjustable: conical, straight, bell, cavity? / double reed
Conical; Its pitch is the same as the highest tone of the Mancina (4 "palmi": a♭; 6 "palmi": d).
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.