Whistle register

The whistle register (also commonly called the flageloet register) is the highest register of the human voice. It is typically used to produce pitches above E6. The ability to produce pitches in this register is believed to be rare.

Whistle register in popular culture

• In Günter Grass's novel The Tin Drum, the main character has trained his voice to shatter glass by screaming.
• In Blake Edwards's Victor/Victoria, Julie Andrews's character shatters a crystal wine glass by singing a single high note.
• In That's So Raven, Raven will shriek to show extreme cases of surprise, shock, sadness, or happiness. In fact, she will often even be speaking in the whistle register, helping to showcase just how distorted (squeaky) the vocal is that high.
• In "The Parent Trap (1998)", Elaine Hendrix shrieking in displeasure showcases the very thin line shrillity makes between a scream and a note in whistle register, as her screams wave with varying degrees of vibrato.