The phrase "a note describing" is correct and usable in written English.
It can be used when referring to a written message that provides details or explanations about a particular subject or topic.
Example: "Please include a note describing the changes made to the document for clarity."
Alternatives: "a message detailing" or "a memo explaining".
At the bottom of the Ferriss press release, there's a note describing the company.
In 1903, Smith dissected him, sending the skeleton to Cunningham, with a note describing Wanamachoo as "the very lowest black-fellow [he'd] ever seen".
In his Los Angeles gallery, a note describing his absence was the only thing viewers found when they arrived for his scheduled exhibition.
This time, instead of American money, there were a few Turkish coins and a note describing some charms from that country.
A note describing the treatment was also included with the book, so a reader could understand how the pages had initially been glued together.
The next day, after Perelman failed to appear, we left a box of pearl tea and a note describing some of the questions we hoped to discuss with him.
He left a note, described as a suicide note by The Sarasota Herald- Tribune, that reported that investors could be out as much as $350 million.
But these are alongside a cautionary note, describing a study that found little evidence of a difference in side effect symptoms between people on statins and those given an inert placebo medication.
Roland tells Maud that Christabel LaMotte's companion, Blanche, who drowned herself in the Thames, left a suicide note describing herself as a "superfluous person".
Each selection is introduced by an informative note describing an occasion in her family's routine that called for a particular song.
Again, everything turned to speed, as if Mr. Tao had taken his cue from a program note describing the finale as "a Rondo of unsurpassed energy".
