You know when you’re at a party, enjoying a group conversation and a member of your gaggle makes a private joke, the meaning behind you’re not privy to? It creates this terribly awkward and uncomfortable feeling as you’re left wondering what is so funny. From context and reaction, you can infer that something enjoyable, or at the very least interesting has occurred, but you’re completely at a loss as to what that is or what it even could be. Half Japanese is the musical equivalent of that sensation. Within their repertoire, you can hear the stylistic hints from the likes…