shrill
adjective
high-pitched and piercing in sound quality.
Used to describe an ongoing action or continuous state that will be taking place in the future.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In the intervals of eating cake I shall write you, and the gramophone will be shrilling "Chalk Farm to Camberwell Green."
From Cavalry of the Clouds by Alan Bott