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Triangle (musical instrument) - Wikipedia, the free encyclopedia

The triangle is an idiophone type of musical instrument in the percussion family. It is a bar of metal, usually steel but sometimes other metals like beryllium copper, bent into a triangle shape. The instrument is usually held by a loop of some form of thread or wire at the top curve.

Recorder (musical instrument) - Wikipedia, the free encyclopedia

The recorder is a woodwind musical instrument in the group known as internal duct flutes-flutes with a whistle mouthpiece. It is distinguished from other duct flutes by having thumb-hole for the upper hand and seven finger-holes: three for the upper hand and four for the lower.