Idiophone instruments are those musical instruments in which sound is produced primarily by way of the instrument itself vibrating (idos = alone, phone = sound). Depending on the manner of sound production they are divided into four groups, i.e. those that produce sound by:
d) rubbing, scraping, friction (Cf. Bezić et al. 1975, Andreis 1974, Ćaleta 2001).
Idiophones were mostly used as signal instruments, accompaniment for customs or as means of entertainment for children (which explains a great number of idiophones used as children's toys).
There are 24 idiophones in the Collection of musical instruments.
The small gusle / gingara; Hrvatsko zagorje, the middle of the 19th century / POH-441ab-1920, The Collection of musical instruments by Franjo Ksaver Kuhač