Give me the keys. I feel for the common chord again,
Sliding by semi-tones till I sink to a minor,–yes,
And I blunt it into a ninth, and I stand on alien ground,
Surveying a while the heights I rolled from into the deep;
Which, hark, I have dared and done, for my resting-place is found,
The C Major of this life: so, now I will try to sleep.
Robert Browning, “Abt Vogler”