It’s called the “Differential Affect Gap” and this article talks about it a bit.

Dr Schubert says, put simply, music is considered more enjoyable or hip when its emotion closely matches the listener’s emotional response. If it does not, it is considered daggy.

Also included in the article is this: “So if you know a piece of music well enough you will start to like it.”

I’m not sure about that … at least not for me. If I know a piece really well sometimes I start to dislike it. Am I just odd? Ornery? Crazy?

But I will have to admit that I probably “fall” for a lot of what others would think of as “daggy”. Sigh.