Since its founding in 2003, the Poulenc Trio has established itself as one of the world’s finest ensembles in the lesser-known domain of double-reed chamber music. On “Trains of Thought,” the qualities of these instruments are particularly well-served by the trios from Francis Poulenc and Jean Francais. The album also offers winning arrangements of music by Shostakovich and Rossini, topped off by a world-premiere piece from contemporary composer Viet Cuong, who originally conceived it as part of a multimedia work combining music and an animated film.