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Two of the most interesting young artists around play in a concert of three premieres: “Kern,” a piece for cello and prepared piano by Marcos Balter; John Zorn’s “The Rule of Three,” for which they are joined by the flutist Tara Helen O’Connor and the vibraphonist Sae Hashimoto; and Natacha Diels’s “Flight Patterns.”

The composer Natacha Diels’s “Bahnhof” was a twist on the ancient myth of Philomela, the abused woman who, deprived of speech, turns into a nightingale.

I can just hear the players during the first rehearsal of “Laughing to Forget,” asking composer Natacha Diels, “You want us to do what?”

The connection can be made because compounds known as anhydrides and esters serve as electronically favourable dienophiles in Diels–Alder reactions, and can then be converted into acids to take part in various RCC reactions.

Chen et al. went on to extend this chemistry from Diels–Alder reactions to three other types of cycloaddition reaction that construct rings formed of three, four or five atoms.