The instrument you are referring to is the "triangle." It is a percussion instrument made of a metal rod bent into a triangular shape and played by striking it with a metal beater. The triangle produces a bright, ringing sound and is commonly used in various musical genres, including orchestral and Folk Music.
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KETTLEDRUM
Yes it is a Percussion instrument.
An unpitched percussion instrument are the maracas.
the percussion instrument was invented in the 5000bc
Yes, the marimba is a percussion instrument.
Yes, the xylophone is a percussion instrument.
A tympani, also known as a kettle drum, is a percussion instrument.
They are classed as percussion instruments.
Drums (any) Piano xylophone timpani
Yes, a triangle is an auxiliary percussion instrument.
A pair of cymbals are a percussion instrument that clashes.