low drone, adjustable: cylindrical, straight, no bell, cavity / single reed

Bass drone - English

Bordòn - Italian (Parmigiano)

Rog - Serbian* (Macedonia)

Rog - Macedonian* (Serbia)

Ronco - Spanish (Castilian) ?

Ronco / Roncón - Galego

Trompa llarga - Català* (Balearics)