Is the disposition of the input text negative?

Text: "Big Monday" was big dud! In the words of Marty Robbins (too old for you youngsters) but often covered by Grateful Dead - El Paso! LAD best?
"Big Monday" was big dud! In the words of Marty Robbins (too old for you youngsters) but often covered by Grateful Dead - El Paso! LAD best?