I apologise in advance if this post may come as rude. That is not my intention.
Here's an idea: how about you stop experimenting with the game's music and sound effects? You made it sound like Candy Crush Friends Saga. But we don't need that. We don't want that. The music and sound effects are what make Candy Crush Saga Candy Crush Saga. If anyone wants a "fresh" "new" Candy Crush experience, we can download the other Candy Crush games. But don't ruin the old one. Don't turn it into something it isn't.
There are a ton of features that you could implement in the game, like cutscenes for each episode. Or DreamWorld (we all miss Odus). Or the ability to give your friends +3 moves. Or the fun-o-meter, which was there for player feedback i.e. how much fun/boring a level is. All of these are features that used to be in the game. And all of them were useful or fun.
Bring back the normal sound effects and music and implement things that players actually ask for.