Windische Pfeife (f)
(with) definite article: dieAccording to Sachs, rather dubiously, a name occasionally mentioned by poets [Seifried Helbling (ca. 1230-?), &c.].
Sachs, Curt: Handbuch der Musikinstrumentenkunde [1920]. Leipzig, 1930 (2), p.356 (»Helbling).