So, a metal head shows up at a techno party... pretty unlikely, right? Right. Disliking certain kinds of music is just as constitutive of personal taste as is liking other kinds; and because it influences music-related behavior, this has consequences for our everyday lives. Researchers at the Max Planck Institute for Empirical Aesthetics (MPIEA) in Frankfurt am Main, Germany, have now investigated some of the possible reasons why people dislike music. Their study has just appeared in the open-access journal PLOS ONE.