Poetry and Rhymes

From what work did Poe take the line "Whose heart-strings are a lute", used in his poem "Israfel"?

More Questions from Poetry and Rhymes
What does the raven say repeatedly in "The Raven" by Edgar Allan Poe?
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One of Hans Christian Andersen's first original fairy tales was about a "Steadfast Soldier" made of what?
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What is the most common foot (poetic unit) in English poetry?
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The work of what famous American poet inspired the musical "Cats"?
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Where is the light in the title of Shel Silverstein's poetry book?
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In 'This Little Piggy', the first piggy went to market. What did the third piggy have?
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Sometime during eternity some guys show up is the beginning of a poem by whom?
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In the rhyme "Baa, Baa, Black Sheep", how many bags of wool are mentioned?
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