String instrument rosin than players of lower-pitched instruments, who tend to favor darker, softer rosin. The ravanahatha is one of the oldest string instruments. Ancestors of the modern bowed string instruments are the rebab of the Islamic Empires, the Persian kamanche and the Byzantine lira. Other bowed instruments are the rebec, hardingfele, nyckelharpa, kokyū, erhu, igil, sarangi and K'ni. The hurdy-gurdy is bowed by a wheel. Rarely, the guitar has been played with a bow (rather than plucked) for unique effects. The third common method of sound production in stringed instruments is to strike the string. The piano and hammered dulcimer use
Music of France iconic hurdy-gurdy and the dance bourrée. There are deep differences between the regions of Central France, with the Auvergne and Limousin retained the most vibrant folk traditions of the area. As an example of the area's diversity, the bourrée can come in either duple or triple meter; the latter is found in the south of the region, and is usually improvised with bagpipes and hurdy-gurdy, while the former is found in the north and includes virtuoso players. The hurdy-gurdy, or "vielle-à-roue", is essentially a mechanical violin, with keys or buttons instead of a finger board. It is made up of