Over gentle, hypnotic piano chords, the violin breathes a singing line of dreamlike beauty: the opening of Brahms's first violin sonata is one of the great moments in music, masterfully recreated here by a brother-and-sister team. Pianist Lusine is at her best in the sprightly, dancing scherzo of the third sonata; violinist Sergey excels in the peaceful meditative central movement of the second sonata. Elsewhere there is slightly too much edgy violin vibrato for my taste, but they come together to create a fresh, incisive account that lifts these three sonatas into a new realm of intense feeling.