The phrase "a single phrase of" is correct and usable in written English.
It can be used when referring to one specific phrase or expression within a larger context or discussion.
Example: "In the poem, the author emphasizes a single phrase of profound significance that resonates with the reader."
Alternatives: "one specific phrase of" or "a solitary phrase of".
Shenk tells us about Beethoven writing 60 to 70 drafts of a single phrase of music, and Ted Williams hitting practice pitches until his hands bled.
In a single phrase of federal law, they found the statutory tool by which the Bush team would seek to undo Florida's postmarking rules.
"A man who shines very little, from whom we cannot recall a single phrase of his monotonous speeches, someone who projects absolute fidelity, a good physical presence and a dose of youth (52), so needed by Raul Castro to show that his government is generationally renewing itself".
In some photos, Liv tries to convey movement by deconstructing a single phrase of dance into a sequence of images that fan out across the photo: in others she cuts or tears the photo into small pieces and then reassembles it, jigsaw-like, with its jagged surfaces or joins clearly visible.
Clearly aware that the cancelled Robert Horn and Cheepy opening was too slow, too flabby, too far off the novel's central themes, Nabokov seized on a single phrase on page fifteen of the Roy version — an aside about Albinus's idle musings about financing a film "of a picture by Rembrant or Goya".
Listen to the very opening of both performances to hear what I mean: Walter's almost vibrato-less violins make a single phrase out of that ascent to the turn figure that will dominate the whole movement, in a breath that you could sing.
There are multiple objections to wresting a single phrase out of context.
I was in a crowded airport terminal when he made his farewell address, and if I had to pick a single phrase to characterize the response of people who looked up at the monitor, it would be "snorts of derision".
It is, therefore, more than just coincidence that the words "health and beauty" trip so easily off the tongue as a single phrase.Other aspects of beauty, too, are indicators of health.
Their unceasing grabbing of tens of millions of other people's (their shareholders') money bespeaks a single phrase: the arrogance of power.
As the Male Chorus in Britten's "Rape of Lucretia," Mr. Vickers could combine blistering outrage and fathomless compassion within the space of a single phrase, raising the part of an onlooker and commentator to the stature of counterweight to the ravished heroine: indeed, her dramatic equal.
