“Experiments with Ca Trù” arrives at Roulette as a live New York program that treats the Vietnamese ca trù tradition as working material rather than a museum piece. Framed within a classical context, the evening moves between set forms and open-ended approaches, with featured performers including We Got Us, Michael Foster with Strings, David Moore, Emilio Modeste and Friends, and Raphael Rogiński playing John Coltrane. Ca trù’s history as a chamber art of voice, poetry, and pulse gives the experiments a clear point of reference. The most telling detail is how quickly the music exposes which risks are structural and which are merely decorative.