  The gap Delta = 4 pi f_pi ~ 1.2 GeV of spontaneous chiral symmetry breaking
is introduced as a scale delineating resonance and continuum regions in the QCD
spectral sum rules for vector mesons. Basic current algebra results are easily
recovered, and accurate sum rules for the lower moments of the spectral
distributions are derived. The in-medium scaling of vector meson masses finds a
straightforward interpretation, at least in the narrow width limit.
