·? (drone: low [Term not mentioned in available sources])
low drone, adjustable: cylindrical, straight, no bell, cavity? / single reed
Unfortunately, Chassaing hasn’t described each instrument separately, but given (at times confusing) information regarding their collective parts.
Type 1a: Retrograde (3 pieces); Type 1b: Retrograde (2 pieces); Type 2a: Inclined (3 pieces); Type 2b: Inclined (2 pieces).
Chassaing, Jean-François: La tradition de cornemuse en Basse-Auvergne et Sud-Bourbonnais [Thèse de doctorat, ethnologie 3e cycle, Univ. Lyon 2, 1981]. Moulins, 1983 (© 1982), p.95 (type only, no term).