In this music, border crossings become audible to me: from baroque to contemporary music, from music to religion, from the secular to the divine. That is why it is also about life and death, resurrection, enlightenment and remembrance - as in Bach's Chaconne in memory of his first wife Maria Barbara Bach. With these words, pianist Alexandra Sostmann describes her album Grenzgänge on PROSPERO, co-produced with Bayerischer Rundfunk, which cleverly combines music by Bach, Pachelbel and Frescobaldi with works by Ligeti and Pärt to create a fascinating musical journey from the beginnings of music for keyboard instruments to the composers of our day.