Sekund (m)
2nd pipe/tube of a triple chanter
Possibly from "sekundować" [to second (support)]; The semidrone (right hand tube) of the Gajdzica of the Dudy podhalańskie.
With the fingerhole closed or open it emits a third (f¹ and a¹).
Kopoczek, Alojzy: Ludowe instrumenty muzyczne polskiego obszaru karpackiego: instrumenty dęte (Folk instruments in the Polish Carpathian region: wind instruments). Rzeszów, 1996, p.117, 119.