Three projects shedding light on the sacred music of J.S. Bach are nearing completion. The first consists of an epic 25-year project to record all the composer’s vocal works – passions, masses, motets and more than 200-odd cantatas – in electrifying performances supplemented by lectures and workshops. At the helm is a Swiss choral conductor renowned for his improvisatory skills – and surely the only baroque specialist to have played Sidney Bechet on a chamber organ.