Now you have pretty rough idea on the musical preference of your barristas here. AP's for classic rock, the likes of Megadeth, Stryper, and Van Halen. I prefer jazz of Bill Evans and Brad Mehldau. Aco's fond of Miles Davis, Branford Marsalis, and, if I make no mistake, Koes Plus. Sjamsu plays The Police. And The Manager loves jazz, and until recently, hip-hop.
So you may say that we have different taste of music, and sometimes, it changes, like The Manager's swing preference to Beyonce. But do we really have different taste --and anything that refers to the term is better left to non-economist, say, psychologist ?
Gary Becker and George Stigler of University of Chicago said no. The taste neither changes nor differs significantly among people. In other words, my musical taste has no difference with AP's, and The Manager's taste on music doesn't change from pretentious jazz to cool hip-hop. Taste remains the same for everyone and at anytime.
Sound outragoeus? Not so, if you care to read their classic paper "De Gustibus Non Est Disputandum", AER, Vol 62, No.2, 1977. In their framework, the reason why I like jazz but not classic rock like AP does is not the difference of taste between us, but consumption capital accumulated for jazz. I happen to have more jazz consumption capital (and less of rock music) than him.
Having more jazz consumption capital, my marginal utility (additional leisure) of time allocated to listen to Evan's Waltz for Debbie increases --and higher than my marginal utility of listening to any of Megadeth's album. Because of that, I'd say that I prefer the former than the latter.
In the case of The Manager, her taste doesn't change, but her capital consumption on hip-hop now goes up, probably because she's watching MTV more or read gossip news about Beyonce lately, or her new guy Charlie happens to be a hip-hop fan.
So next time you hear the "Seurieus"'s lyrics "Daripada musik metal, lebih baik musik jazz" (liberally translated: In comparison to (heavy) metal, jazz's better), think again.