scraped idiophone

A formal sub-classification of idiophones that are comprised of an instruments that produces sound by scraping with a stick or other non-vibrating object. These instruments have no discernible pitch and are typically used for rhythmic interest, and in some cases, the main rhythm instrument. 

 

Scraped Idiophone instruments include:

• güiro
• cabaça
• ratchet or cog rattle
• washboard or rub board
• sandpaper blocks
• yü