Crossword clues for Letter from 31-Across 3 lettersAnswerClueETALetter from 31-AcrossBADEWished, as a farewell (... last 2 letters of this answer + the first 4 of 31-Across)STAFFSheet music quintet, and with 31-Down, what the first letters of 16-, 22-, 36-, 45- and 56-Across represent