with ac/dc's third release, powerage, the band was dispensing even heftier ammo from their hook-laden cartridge belt. with the rock-steady rhythm section pounding out 4/4 beats as if it were overtaking a small country, guitarists (and brothers) angus and malcolm young trade towering riffs that belie their pint-sized physical stature. the real change on powerage is a noted improvement in songwriting skill. the six-minute "down payment blues" actually has a sense of restraint and building tension, as opposed to the band's usual hit-the-ground running approach.
