Opening sound

I like this app. No problem with it except the opening sound that is like a roar. I play games when I am waiting in restaurants and doctors offices, etc. I dont want to turn down my phone volume so as not to hear it because I may forget to turn it back up. I always mute sounds on all of my game apps. Why isnt there an option for this here??? Please give this option. Because I despise the opening sound so much, I am giving it a 3.

Sam.Mc. about Clueless Crossword Party!