Tunga (-)
(with) definite article: Tungantongue: vibrating blade of a single reed (idioglot (either up- or down-cut) or heteroglot)
NB: ➺ homonym (single reed [synonym of Rörblad]).
Rehnberg, Mats: Säckpipan i Sverige ([The bagpipe in Sweden]). Stockholm, 1943, p.23, 54.