Traditionally, when it was still common in the Silesian Beskids, yew (Taxus baccata), especially its root, was preferred, because it was, according to Jan Kawulok, "good, dense, hard, with good acoustics"; Formerly, gajdosze made the gajdzica and hók only of yew, but since it no longer occurs naturally in the Beskid forests, it is under protection; Contemporary instruments are therefore made of pear (Pyrus communis), plum (Prunus domestica, in Szymonowiczowie called Hungarian Dambrovicka [Hungarian plum], which can also be used for a Gajdzica), or even sycamore (Platanus occidentalis), which is, however, not as good, because it turns white when drying, and must be properly stained, which is a problem nowadays [i.e. in the 1960s; ws], as present-day folk practice doesn’t know reliable ways to stain* wood; According to Jan Kawulok, "a Demlok should be "soft and light", and should be made of linden (Tilia)"; *NB: Silesian "bajcować" (➺ Pilecki) is spelt "bejcować" in standard Polish.