* [flutes are the earliest musical instrument known](https://en.wikipedia.org/wiki/Paleolithic_flutes) * They're also a large family of instruments within the woodwind group. Woodwinds typically have [zero, one, or two reeds](https://en.wikipedia.org/wiki/Reedless_wind_instrument). Flutes are those that have zero reeds. * [vessel flute](https://en.wikipedia.org/wiki/Vessel_flute), eg. ocarinas * many commonly-known instruments: whistle, recorders, slide whistles, panpipes, * [fipple](https://en.wikipedia.org/wiki/Fipple), [end-blown](https://en.wikipedia.org/wiki/End-blown_flute), [transverse/side-blown](https://en.wikipedia.org/wiki/Transverse_flute) flutes