Poet Don McIver continues his poetic meditations on the classic jazz scene.  John Coltrane's "A Love Supreme" was recorded in December of 1964--three years before his death, from liver cancer, at age 40. Don McIver, whose work has inspired the Duke City for decades, wrote this piece just days ago.    A YouTube video of 'Trane accompanies the poem. A Love Supreme                     --for…