And the color, the overcast blue
Of the air, in which the blue guitar
Is a form, described but difficult,
And I am merely a shadow hunched
Above the arrowy, still string,
The maker of a thing yet to be made;
The color like a thought that grows
Out of a mood, the tragic robe
Of the actor, half his gesture, half
His speech, the dress of his meaning, silk
Sodden with his melancholy words,
The weather of his stage, himself.

The Man With the Blue Guitar (1937)