The late esteemed maestro Sergui Celibidache! To some classical music critics his tempo was often slow--or ponderous in the words of one--but he was undeniably one the twentieth-century giants. It was an era when elite conductors like a Herbert von Karajan or George Szell could reduce even a seasoned veteran musician to quivering jelly with a piercing glance or momentary glare.
This is a perfectly horrid YouTube video of one of the greatest symphonic compositions ever written from a sonic standpoint, Ottorino Respighi's tone-poem
The Pines of Rome. What makes this video priceless is a ten-second span at 20:45 when two supernumerary trumpets (often flugelhorns are used for that passage) enter offstage. One musician is noticeably late and incurs the wrath of the conductor. Priceless! It is in a lead-up to a thunderous climax with Sergui Celibidache nearly going into tachycardia on the podium.