Ha ma

Ha ma *friction drum of China in form of a clay frog with a hollow body. The bottom is covered with a piece of strong paper. A single horsehair passes through a hole in the paper and is rubbed with wet fingers (142). Moule, A. C. “A List of the Musical and Other Sound-producing Instruments of the Chinese,” in Journal of the North China Branch of the Royal Asiatic Society, Vol. 39. London, 1908.