Accord (m)
(with) definite article: le: l’low drone, adjustable: cylindrical, straight, bell, cavity? / single reed
Inclined (sometimes, but very rarely, retrograde).
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, p.78, 84.