Well, the Flute is generally quite high a reedy, but not an irritating sound, more like light, hollow tone. It's difficult to describe. When vibrato is used the tone quality has to be carefully managed so the sound comes out gentle and delicate rather than like a woodpecker.
A bassoon has a lower sound than a flute.
You blow into the Flute's mouth, The sound comes out the rear end.
exactly how a d note should sound on a flute
The Flute sound is very smooth, round, and mellow . . . sort of a "Who Who Whoooo" kind of sound.
an airy flute
Flute has a long U (long OO) sound, and a silent E. It rhymes with chute or shoot.
The sound a flute makes is typically spelled as "whistle" or "flutey."
that's a flute that has two ways of sound
the flute makes its sound when you blow and air rushes through and comes out of the holes in a rush making a sound.
The flute is a non-transposing instrument. Whatever pitch is written in the music is the note that will sound when the flute is played.
The sound of a flute is made by blowing across the lip plate hole.
A word for the sound of a flute that suggests that sound is the verb "tootle."