Given the connection between community and communication (as can be easily seen in the English words, from Latin), I somehow was clued into the importance of music and dance as community reinforcing activities. Communities are, in some ways, where a group of people coordinate their actions with each other -- the same is true of dance (and the music that goes along with it). So I had an "of course!" moment when I read this:
The Sesotho verb for singing (ho bina), as in may of the world's languages, also means to dance...From Daniel Levitin's This Is Your Brain On Music, p. 7. I'm not a linguistics expert, and I know English (sing, dance) and Spanish (cantar, bailar), and as you can see neither of those clued me in.
