If there’s a theme running through the third and final installment of 2007 in the Mix, our super-sized supplement to Idolator Pop ‘07, it’s a curious mixture of localism and globalism. On the home front, the mixes by Minneapolis’s Peter S. Scholtes and Baltimore’s Al Shipley pay tribute to their hometowns (forming a troika with the Chicago-centric mix by the Windy City’s Mairead Case). By contrast, the global dance-music scene gets a nod from Philip Sherburne, while Elisabeth Vincentelli, K. Leander Williams, and Douglas Wolk survey wider terrain. [Idolator Pop '07]