An idiophone is any musical instrument that creates the sound primarily by the instrument as a whole. Vibrating with out the use of strings or membranes. The early classification of Victor-Charles Mahillon called this group of instruments autophones. Most percussion instruments that are not drums are idiophones. Hornbostel-Sachs classifies idiophones into four main sub-categories.
The first division is the struck idiophones [sometimes called concussion idiophones]. This includes most of the non-drum percussion instruments familiar in the West. They include all idiophones made to vibrate by being struck, either directly with a stick or hand like the wood block, singing bowl, steel tongue drum, triangle or marimba or indirectly, by way of a scraping or shaking motion [like maracas or flexatone]. Various types of bells fall into both categories.
|Idiophones / Hornbostel Sachs No#:|
|111.2||Percussion||Claves / Cajita|
|112.1||Shaken / Rattle||Chekere|
|112.2||Scraped / Rasp||Guiro|
|13||Friction||Glass Harp / Singing Bowls|
|131.||Bowed||Stick Nail violin|
|132.||Bowed Plaque||Musical saw / Daxophone|