What instrument family are the symbols in?

The symbols you are referring to likely belong to the percussion family of instruments. Percussion instruments produce sound by being struck, shaken, or scraped, and include a wide variety of instruments such as drums, tambourines, and cymbals. They can be classified into two main categories: tuned (like xylophones) and untuned (like snare drums). This family is essential for keeping rhythm and adding texture to musical compositions.