Gourari’s Bach-Busoni Chaconne is one of the most riveting on record. She plays the opening theme with very slight delays at the ends of phrases that help set up the serious, large-scale scenario that follows. You don’t notice slow pacing per se so much as unified tempo relationships, close attention to inner voices and controlled bravura. In the Bach-Siloti B minor Prelude Gourari observes repeats other pianists mostly ignore, and imparts welcome and meaningful shape to the arpeggiated left-hand accompaniment, which, in turn, provides a base from which the right-hand line floats without effort. Gourari’s piano benefits from ECM’s highest engineering standards.