Marcus, Morton: Shouting Down the Silence (poems)
'Shouting Down the Silence' Verse Poems 1988-2001, by Morton Marcus; Creative Arts Book Company, Berkeley, California 2002.
A poem on page 68 titled 'A Letter', is in the form of a letter from one Wilhelm to his friend Sophie, Dec. 21 1885. Wilhelm is an employee of Gutmann, the publisher, and he reports (a fictional) delivering a letter to Bruckner from Emperor Franz Joseph.
My thanks to Ken Ward for this listing.