“I was aiming for something that seemed unreachable”, said Penderecki of the St Luke Passion, a work written to mark one thousand years of Christianity in Poland, but commissioned by Westdeutscher Rundfunk to celebrate the 700th anniversary of Münster Cathedral. How was such a fundamental expression of faith received in Communist era Poland, and where does the St Luke Passion sit in a lifetime of composing sacred music? In this podcast we reflect on belief and redemption in choral music.