In fact, in the context of the character, it looks good because the pyro looks like a child, so it could work as instruments. Percussion But I would change the triangle for a tambourine

Pyro is just goofy thing. Triangle is perfect for pyro's personality.

引用自 BOT HATER：

Pyro is just goofy thing. Triangle is perfect for pyro's personality.

Pyro has a darn weapon taunt with a axe and plays it like a guitar, and there is a taunt where pyro plays a piano