Music is a peculiar phenomenon. It fades away yet can leave memorable traces of existential upheaval in the listener. In music, there occurs an encounter of closeness and withdrawal, where the enigma of one’s own existence and the ineffability of God are intricately woven together. Christian Hörmann explores how this event of music can be articulated theologically and what significance music holds for theological reflection. In the concept of kairological rationality, he develops a way to make the emotional resonance experienced in music accessible to a theological-scientific reason.