at least, from a library catalog searching point of view: A&R: A Novel
unless you search by author, this thing is a nightmare.
Title search A R = 609 hits
Title search "A & R" (in quotes) = 125 hits
title browse "A & R" (in quotes) or A & R without quotes yields this list:
QWERTY STEVENS STUCK IN TIME WITH BENJAMIN FRANKLIN
R A F THE STORY OF A BRITISH FIGHTER PILOT
R A LONGS PLANNED CITY THE STORY OF LONGVIEW
R A NOVEL
the lone "R" up there links to 2 CDs with that title; the one by R. Kelly, and the one by Queens of the Stone age.
So once you remember that the catalog assumes the "A" in the title is an article and is thus a stopword, there it is as "R- a novel". If you clicked on the first "R", didn't see this title, and didn't look down the list for "R- a novel", you'd assume we don't have this book.
"A is for alibi" does the same thing in our catalog, but at least "Is for alibi" is a little closer visually to the title you expect. Plus every public library in America probably has a copy of it, so it's not like you wouldn't keyword search "Alibi and grafton" if you didn't find it with a title browse.
If I worked at Random house, I'd have told the author to call his book "Artists and Repertoire".