And filled the air with barbarous dissonance; 550
At which I ceased, and listened them a while,
Till an [unusual stop of sudden silence]
[Gave respite to the drowsy-flighted steeds]
That draw the litter of close-curtained Sleep.
At last a soft and solemn-breathing sound 555
Rose like a steam of rich distilled perfumes,
[And stole upon the air, that even Silence]