Bagpipe

A wind instrument (allegedly musical) composed of a bladder, which stores air, and releases it under applied pressure, between a pipe to input the player's air, under lung pressure, and one or more output pipes, which may or may not be tuned to allow the player to essay a tune.
Popularly compared to the sound of several cats, in a bag, being tortured.
Probably ideal for waking the peerage after a long night.