Under Demenga’s bow, Bach’s Suite No. 1 for Solo Cello in G Major flickers with candlelit intimacy, honed like the wood from the instrument through which it emotes in that distinct and mineral tone. One imagines the room where it was first practiced, walls dancing in a quiet play of light and shadow: the player’s arched head, swinging hands, lithe fingers curling about the neck of the one who sings. As to the later suites, Demenga brings a unique mix of fluidity and rusticity to his sound, but above all pays attention to negative spaces in a way that any accomplished Bach interpreter must. We hear this in the pauses of the Courante and in the substantial attentions of the Sarabande, which he suffuses with a downright soulful air. And through the subtle dramatic shape he imparts to the Menuets he dances his way to a reflective brilliance in the Gigue. With this perfect tetrahedron so thoughtfully folded before us, Veress’s 1935 Sonata for Violin may seem to break the s...