Already, record all of Bach's organ works merit, in my opinion, 5 stars. Marie-Claire Alain has registered 3 times. This latest version seems even more beautiful than the last by the choice of instruments. Anyway, it's good to have multiple integrals. I possess thereof Walcha (second stereo), Chapuis, Isoir and Verlet. All are exciting. That of Marie-Claire Alain is often poignant by its human and meditative aspect. The comment of Mr. Muller is very fair.