Heard "Little Drummer Boy" to the point you want to smash the drum? Swap your "bah, humbugs" for "yee-haws!" with a little down-home country fun provided by Trailer Choir, which rolls into The ...

Computer-generated art and music may reveal much about ourselves, as your feature suggested (14 January, p 42). Music arises from the interplay between two fundamental brain mechanisms – pattern ...