The fervent Turkey-supporting crowd of more than 30,000 were silenced to such an extent that, when the final whistle blew in Baku, all you could hear were the joyous cries of Wales' players.
Wednesday's 2-0 victory over Turkey was arguably their best performance and result since Euro 2016, an inspiring campaign which culminated in a first semi-final in Wales' history.
Gareth Bale and Aaron Ramsey played leading roles during that golden summer in France and, under the night skies of Euro 2020's eastern outpost, Wales' stars sparkled once more.
It has not always been that way.