This French quartet has an elegant feel for all the music it approaches, whether that's Mozart's slyly “dissonant” string quartet or the music of Brazilian composer Marcos Valle. Quatuor Ébène's roster of instrumental collaborators—including piano maestro Menahem Pressler and jazz singer Stacey Kent—likewise indicates this group's enviable flexibility. Still, their core strength is in the Classical and Romantic European repertoires, which they investigate with songful verve and technical precision.