I've been thinking about whether music helps or distracts from achieving "flow" in games. Do they enhance the flow experience or distract from it?
Examples of games which seem to achieve great flow without music (or with ambient/percussion-only music) are Angry Birds, Temple Run and Doodle Jump.
But then again, there are examples of games that use music but seem to also achieve flow themselves, such as Tiny wings.
Has someone researched this?