The quality of the High Spirits flutes are exceptional!
What is 432 Hz Pitch?
Most flutes, and most musical instruments for that matter have been tuned so that the “A” note (of the middle octave on a piano) is tuned to 440 Hz (Hz = cycles per second). This is known as Concert Pitch and was established as a standard at the beginning of the 20th century.
Much like the subtle inflection of the human voice that can project a subtle variation in feelings, an instrument using a slight change in frequency can alter the feeling quality of the music being played. Please note, though subtle in difference, instruments tuned to 432 Hz to do not pair with instruments tuned to 440 Hz.