Raccord (m)
(with) definite article: letube, with valve, connecting bellows and bag
Tube, with valve, between bellows and bag; Sometimes it consists of 3-4 joints, one of which is flexible, allowing the piper relative liberty of movement; NB: ➺ my remarks (NB²) to Porte-vent (➺ ref. to homonym).
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.12, 85.
➺ Ricros, André (et al.): La cabrette: histoire & technique d'une cornemuse. s.l. [Riom], 2017 (NB: ➺ Porte-vent (du soufflet): p.18, 524 (plural)/*, 525d/e*, 545, 744 [sic]).