A Chopin festival in Warsaw experiments with connections between the great Polish composer and jazz. “Because Polish musicians live and breathe Chopin’s music practically from the moment they first place their fingers on a piano or a fiddle, jazz artists such as violinist Maciej Strzelczyk and pianist Filip Wojciechowski were well equipped to radically reconceive themes from Chopin’s preludes, waltzes and etudes. To these artists, reworking a motif from a classic Chopin piano piece is akin to an American player riffing on the chord changes of George Gershwin’s “I Got Rhythm” — this indigenous music courses through their veins.”