I often find new artists through looking through the Wikipedia pages for certain genres of music. For example, I found the band Television Personalities while looking at the page for "Anti-folk," and
 I ended up subsequently listening to their album "And Don't the Kids Just Love It," all based on the fact that the picture for Television Personalities at the top of the Wikipedia page was really cool. Basically, all this combined gave me the impression that this would be a cool band, based on their name, genre, pictures, etc. When I listened to the album, it was good, but it wasn't as good as I expected it to be, even though I couldn't possibly have had any expectations for their music. Would you say my expectations based on things that had nothing to do with the MUSIC of Television Personalities in turn made my experience of their album less enjoyable?
no, it possibly made your experience better, because you were in a welcoming mood