·? (chanter [Term not mentioned in available sources])
single chanter: conical, straight, no bell / double reed
Key: F (e¹-f²); Due to the lack of a thumbhole the production of the higher tones is difficult.
NB: Example(s) to be replaced with staff-notation.
Praetorius, Michael: Syntagma musicum, 2: de organographia. Wolfenbüttel, 1619. Herausgegeben von Wilibald Gurlitt [1958]. Kassel, 1964 [facsimile (2)], p.25, 42 + pl.XI;7.