Head voice isn’t optional—it’s half your instrument. Yet many singers ignore it, thinking they can get by without ever really developing it. In this episode of The Voice Science Podcast, we break down what head voice actually is, how the concept of vocal registers developed through history, and why voice teachers for centuries have called it essential.

You’ll learn:

• How head voice and chest voice connect to real vocal fold mechanics
• Why Garcia’s 19th-century research and Hirano’s body–cover theory still matter today
• The four primary vocal registers—and how they form a continuum
• A practical exercise to hear and feel the role of fold mass in your singing
• What choices become impossible without head voice (range, blending, mix, emotional colors)

By the end of this episode, you’ll understand why head voice isn’t just another “option”—it’s the key to unlocking your full vocal range and expression.

👉 If you’re ready to strengthen your head voice, check out our course Strengthening Your Head Voice, now available inside VoSci Academy at voicescience.org.