In a dramatic physics demonstration, a professional flutist produces four resonances with a 12 ounce
Boylan soda bottle solely through her breath control. The 22 cm bottle acts like a Helmholtz
resonator for the lowest pitch. The three higher pitches fall near the 3rd, 5th, and 7th harmonics
for a 22 cm closed pipe. A video of this remarkable feat is provided (Ruiz 2016 YouTube: Four
Resonances with a 12-ounce Soda Bottle ( https://youtu.be/ibtVrp2NF_k [https://youtu.be/ibtVrp2NF_k]
)). The video also reveals that a flutist can bend resonance pitches by as much as 10% through
control of air speed.