New week, new music.  Continuing the techno trend, here’s Mind Mapping by Ryutaro Nakahata (hey, another Taro).  It comes from a popular Japanese arcade game, Beatmania IIDX 16: Empress. Beatmania IIDX 16 EMPRESS simulates a DJ deck using 5 buttons and a disk.  Much like any rhythm game, the object is to hit the right button when the “notes”…