"What's not music, but feels like music to you?"

The category "music" as used in this area of science is inconsistent and unstable, and its logical relationship to the word "musicality"-used by scientists to denote the human capacity for music-is circular. Therefore, rather than pursue the question, "Why did music(ality) evolve?" let us ask more inclusively, "What experiences in humankind's deep past might have felt like music?" [Invited commentary on articles by Savage et al. and Mehr et al.]