"poetry reading accompanied by jazz music," 1959, from jazz (n.) + poetry.
Entries linking to jazzetry
jazz n.
by 1912, American English, first attested in baseball slang; as a type of music, attested by 1915. Perhaps ultimately from slang jasm(1860) "energy, vitality, spirit," perhaps especially in a woman. This is perhaps from earlier gism in the same sense (1842).
By the end of the 1800s, "gism" meant not only "vitality" but also "virility," leading to the word being used as slang for "semen." But — and this is significant — although a similar evolution happened to the word "jazz," which became slang for the act of sex, that did not happen until 1918 at the earliest. That is, the sexual connotation was not part of the origin of the word, but something added later. [Lewis Porter, "Where Did 'Jazz,' the Word, Come From?" http://wbgo.org Feb. 26, 2018]
Meaning "rubbish, unnecessary talk or ornamentation" is from 1918. Slang all that jazz "et cetera" first recorded 1939. Further observations from Porter's summation of the research:
"Jazz" seems to have originated among white Americans, and the earliest printed uses are in California baseball writing, where it means "lively, energetic." (The word still carries this meaning, as in "Let’s jazz this up!") The earliest known usage occurs on April 2, 1912, in an article discovered by researcher George A. Thompson, and sent to me courtesy of [Professor Gerald ] Cohen.
... By 1915, jazz was being applied to a new kind of music in Chicago. It seems to have been first applied to Tom Brown's all-white band, which hailed from New Orleans. This was followed by many printed references to jazz as a musical style.
poetry n.
late 14c., poetrie, "poetry, composition in verse; a poem; ancient literature; poetical works, fables, or tales," from Old French poetrie (13c.), and perhaps directly from Medieval Latin poetria (c. 650), from Latin poeta (see poet). In classical Latin, poetria meant "poetess."
Figurative use is from 1660s. Old English had metergeweorc "verse," metercræft "art of versification." Also scop-cræft "the poet's art." Modern English lacks a true verb form in this group of words, though poeticize (1804), poetize (1580s, from French poétiser), and poetrize (c. 1600) have been tried. Poetry in motion (1826) perhaps is from poetry of motion (1813) "dance" (also poetry of the foot, 1660s). Poetry slam is by 1993.
It is only by a miracle that poetry is written at all. It is not recoverable thought, but a hue caught from a vaster receding thought. A poem is one undivided unimpeded expression fallen ripe into literature, and it is undividedly and unimpededly received by those for whom it was matured. [Thoreau, "A Week on the Concord and Merrimack Rivers"]
Poetry — meaning the aggregate of instances from which the idea of poetry is deduced by every new poet — has been increasingly enlarged for many centuries. The instances are numerous, varied and contradictory as instances of love; but just as 'love' is a word of powerful enough magic to make the true lover forget all its baser and falser, usages, so is 'poetry' for the true poet. [Robert Graves, "The White Goddess"]
And the relation of the forms of poetry to the requirements of actual song is so fixed, that the laws of the four great groups of metre which we now successively to examine—the trimetre, tetrametre, pentametre, and hexametre—all depend upon the physical power of utterance in the breath. [Ruskin, "Elements of English Prosody, for use in St. George's Schools," 1880]