The phrase "trumpet blast" refers to a loud and powerful sound made by a trumpet. It is often used to describe something dramatic or attention-grabbing. Full definition
We've added trumpet blasts to mimic the great sound of the wind of the spirit, we wave red streamers on bamboo rods, raise clouds of red and white balloons, and... (religion-online.org)
The opening movement of «Soul Recordings» is a polka - dot revelry, a bedazzled wake - up call, a cymbal - clap altarpiece, a plastic - bead trumpet blast, and a monster of... (artillerymag.com)