Whistle Register. The whistle register—also known as the whistle tone or flute register—is considered to be Whistle Register VS Head Voice VS Chest Voice. Whistle register is a unique range that many people aren't capable of hitting.
Singing in your whistle register is in a word spectacular.
Singing in your whistle register (also known as whistle notes or bell notes) is no easy feat.
I haven't told my teacher about this whistle register yet because I'm afraid that she would torture me to reach it with the same quality or thickness as that of my lower registers during a lesson. Whistle register — The whistle register (also called the flageolet register or whistle tone) is the highest register of the human voice lying above the modal register and falsetto register. Projecting in whistle register requires many basic singing techniques with slight adjustments for the high pitch.