And it's a cold canvas lodged in the gut of Atlantis
A canvas is a woven fabric material that became popular hundreds of years ago as a medium for oil paintings while cold canvassing is something else entirely; a sales technique based upon calling potential customers without any qualification as to why they would use your business.
Atlantis is a mythical island empire that conquered much of what is now known as western Europe before mysteriously sinking into the ocean.
There is a lot going on in this line…first, Aesop is expanding upon the previous metaphor comparing his songs to Rembrandt’s paintings of moral scenes. He then goes on to say in this line that his songs are a sort of cold canvassing—he is not completely sure which fans will respond favorably to his ideals on morals. Finally complains his little-known gems of songs to the cultural artifacts lost along with the empire of Atlantis—they may never reach a wide audience.
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