A drumhead tensioning and tuning apparatus comprises opposed carriage-like tensioning-tuning assemblies each of which comprises a drum gauge and a torque-supplying implement for selectively rotating head tensioning rods of a drum assembly. The tensioning-tuning assemblies are track mounted such that the opposed assemblies may be linearly displaced relative to one another. The apparatus may thus be positioned diametrically across drums of varying dimensions and the tensioning-tuning assemblies may be outfitted adjacent or at opposed drumhead portions for simultaneously tensioning and tuning the opposed drumhead portions. The apparatus may then be removed from the first set of opposed drumhead portions and outfitted upon a successive pair of drumhead portions according to standard drum tuning sequencing schemes. The ability to simultaneously tension and tune sequential and successive pairs of opposed drumhead portions enables expedited drumhead tuning. Certain drumhead tuning methodology is further supported by the apparatus.