Like the name suggests, the song is a prayer in the key of C . And it’s directed at God. The song complains that God has been absent from the world and suggests that He probably couldn’t even forgive Himself for what He’s let happen.
“Prayer in C” is set in common time at a tempo of 120 beats per minute. Despite its name, the song is actually recorded in the key of A minor , so the “C” may indicate “Christ”, rather than the musical key.
The music video was filmed in Berlin primarily in black and white over the course of three days.