[larkeith]

Despite the title and article's claims, it appears that the researchers found the same:

> The third experiment - exposure to music with familiar lyrics- impaired creativity regardless of whether the music also boosted mood, induced a positive mood, was liked by the participants, or whether participants typically studied in the presence of music.

Given that they had to specify this, it would imply that for music without familiar lyrics creativity was not impaired (at least, to a statistically significant level) when participants enjoyed the music or usually study to music.