Basso minore (m)
(with) definite article: ilFrom Antonio Morri, »Vocabolario Romagnolo-Italiano« (Faenza, 1840), in which it is described as "one of the 2 playing pipes", thus suggesting that it is a term used for the chanter (NB: Compare Basso grave).
Utriculus 3;2 (10), aprile-giugno 1994, Miscellanea zampognara, p.13: “La «Piva-da-Sacch»” (»Morri, p.590).