Bach’s Musikalisches Opfer (Musical Offering), with its inge­nious body of canons, fugues and a trio sonata, is the jew­el in the crown of baroque coun­ter­point. Balancing the old baroque with the new, galant world, Jean-Luc Ho and Le Petit Trianon switch between the famil­iar harp­si­chord and the inno­v­a­tive tones of the Silbermann fortepiano.