Zampogna [a] randi chiavi (f)
(with) definite article: lanames of bagpipes (&c.) in connection with their pitch only
Literally: (the) bagpipe [with a] large key (Grande chiave); Castagna/Morello refer also to it with slightly different varieties of this name (incl. a noun/adjective switch, which is not unusual in Italian); NB: ➺ my remark to Randa.
Key: G#.
Castagna, Ettore & Morello, Domenico: La zampogna a chiave calabrese - 2: Diciùattu, la più grande zampogna a chiave della Calabria e la classificazione misteriosa (The Calabrian bagpipe with key - 2. Diciùattu, the largest bagpipe with key in Calabria and the mysterious classification). In: Utriculus, Nuova serie XIX (59), I semestre 2020, p.16 (randi chiavi), [17] (a chiavi randi), [21] (a randi, a chiavi randi).
ws (linguistics [➺ Dictionaries, &c.]).