At it's best, harmony duo singing can transform simple math into a magic trick. One plus one, instead of equaling two, suddenly yields an unexpected third thing. An upper-case ONE. A universal hum. A deep vibration that encompasses two different points of view. On their latest release, Every Time I Think About You, brothers Page Burkum and Jack Torrey, aka The Cactus Blossoms, once again prove themselves to be among the most adept - and instinctive - modern practitioners of the classic tradition.