These are not meant to imitate orchestral sounds but can sometimes suggest them. Flutes Flutes are made of wood or metal. Flutes have a clear sound, much like the flute in an orchestra and few overtones. Their scalings are the widest of all pipes so they are fairly wide in proportion to their length. They can be open, stopped, or tapered.
Stopped flutes have a more hollow tone than the open flutes.
The stopper in the top enables them to be half the length of an open flute pipe but still produce the same pitch . Tapered flutes produce an unusual sound because they are wider at the bottom and narrower at the top. Their length is somewhere between an open pipe and a stopped flute of the same pitch. Their sound is a crossover between a flute and string. Think of it as a flute with a nasal tone to it.