Accompanying strain; subordinate and underlying meaning; accompaniment; undertone. "In the very (poetry) there often an undersong of sense which none beside the poetic mind... can comprehend."
... rinde; And whilst her braunch faire blossomes foorth did bring, 241 She fell away against all course of kinde*. For age to dye is right, but youth is wrong; She fell away like fruit blowne down with winde. Weepe, Shepheard! weepe, to make my undersong**. [* Kinde, nature.] ... — The Poetical Works of Edmund Spenser, Volume 5 • Edmund Spenser
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