Steve Reich composes music for humans, and good music at that. You could, however, be forgiven for thinking that there is something mechanical to his work. Phasing, the technique most commonly associated with Reich, involves the same sequence being played at gradually—and slightly—divergent speeds. You can best imagine it as two tape machines that have fallen out of sync and, by the end of a composition, have found each other once again.  In that vein, here is Reich’s Piano Phase as performed on two Game Boy Micros by chiptunes artist Pselodux: the underlying pursuit is human.  This is, on the…