I missed Saint-Saens’ Romance. Op. 36, but got to the hall in time to hear sustained applause for Sophia Bacelar (cello) and Noreen Cassidy-Polera (piano), which got me thinking about the dynamics of audience applause. I found a study that spoke of it in terms of a disease, saying that “Individuals’ probability of starting clapping increased in proportion to the number of other audience members already ‘infected’ by this social contagion, regardless of their spatial proximity. The cessation of applause is similarly socially mediated, but is to a lesser degree controlled by the reluctance of individuals to clap too many times.”

Midway through the first movement of the second piece, Rachmaninoff’s Sonata in G Minor for Cello and Piano, Op. 19, paramedics from the Chicago Fire Department showed up with a wheeled emergency stretcher, which they pushed up the middle aisle to a row near the front, where they loaded a man onto it, then reversed their course, pushed the cart back onto the elevator, and disappeared, all silently, in a matter of moments, and without causing the slightest interruption to the musicians, neither of whom lost concentration or looked up, perhaps so focused as to be unaware of what was transpiring 10 to 15 feet in front of them. Brava!

As for the man who was removed, from a distance he didn’t appear to be in any great discomfort. Perhaps he just needed a ride to a meeting (he had a briefcase with him) or perhaps, because I had arrived a few minutes late, I was unknowingly in the middle of the filming of an episode of Chicago Fire.

Or, as the sonata was, according to the program notes, among the first of Rachmaninov’s major pieces after he went through hypnotherapy to overcome writer’s block, perhaps the music itself has hypnotic qualities, and there were no paramedics. Is that Rod Serling I see in the corner?