Washboard (musical instrument) captured by a small clip-on microphone. The sound is then sent through a wah-wah and other effects pedals to create a fresher, more innovative and up-to-date sound for the washboard. A frottoir is played with a stroking instrument (usually with spoon handles or a pair of bottle-openers) in each hand. In a 4-beat measure, the frottoir will be stroked 8 to 16 times. It plays more like a Latin percussion instrument, rather than as a drum. The rhythms used are often similar to those played on Guiro. Actor Deryck Guyler was well known for his washboard-playing skills. Washboard (musical instrument)
Musical instrument which produce sound by electronic means. Within each category are many subgroups. The system has been criticised and revised over the years, but remains widely used by ethnomusicologists and organologists. Andre Schaeffner, a curator at the Musée de l'Homme, disagreed with the Hornbostel-Sachs system and developed his own system in 1932. Schaeffner believed that the pure physics of a musical instrument, rather than its specific construction or playing method, should always determine its classification. (Hornbostel-Sachs, for example, divide aerophones on the basis of sound production, but membranophones on the basis of the shape of the instrument). His system divided instruments