ballade

noun

musical setting of a literary ballad; poetic and musical genre in the 18th and 19th centuries, popular with the Romantics and their later epigones

Etymology: Borrowed from French ballade. Doublet of balada and ballad.

Any of various genres of single-movement musical pieces having lyrical and narrative elements.
“Thus, when he drew up instructions in lawyer language […] his clerks […] understood him very well. If he had written a love letter, or a farce, or a ballade, or a story, no one, either clerks, or friends, or compositors, would have understood anything but a word here and a word there.”
“"Dead and gone!" as Andrew Lang re-echoes in a sweetly mournful ballade[…”
A poem of one or more triplets of seven- or eight-line stanzas, each ending with the same line as refrain, and usually an envoi; more generally, any poem in stanzas of equal length.