@GarySmokesOak Except you can turn off the music. Whenever you enter a level, click on the pause button on the upper right corner, then a small menu will pop up from that pause button. There you can retry the whole level, continue playing the level, Exit the level, and turn off music (and only leave the game sounds, or you can turn sounds and music off completely). Alternativly, you can also just mute your current tab.
to anyone still stuck with hard Badge. Look trough all the best comments (aka click the red link where you can view them). There are some more helpful comments there. For 1 Slice Mode, here are the Levels that I managed to 100%, hopefully it will help some of ya out. L1;L3;L4;L6;L7;L8;L9;L10;L11;L12;L13;L19 (L19 is possible, but very luck-based. There is a certain spot where you have to cut at the middle row of boxes).
 "Hexologic"){kind=icon}
 "3 Slices 2"){kind=icon}