Keening

The keening whistle of the tea kettle signaled that the water had boiled.

The keening whistle of the teapot signaled that the water was boiling.

The keening voices of the choir conveyed the deep sorrow of the funeral service.

The somber, keening notes of the bagpipes filled the air at the memorial service, evoking a sense of solemnity and remembrance.

The haunting melody of the keening bagpipes played at the memorial service brought a sense of solemnity to the occasion.