Violin radiativity profiles are dominated by the Helmholtz-like A0 cavity mode ( ∼ 280 Hz), first corpus bending modes B1− and B1+ ( ∼ 500 Hz), and BH and bridge-filter peaks ( ∼ 2.4 kHz and ∼ 3.5 kHz, respectively), with falloff above ∼ 4 kHz. The B1 modes—dependent on two low-lying free-plate modes—are proposed to excite A0 via coupling to B1-driven in-phase f-hole volume flows. VIOCADEAS data show that A0 radiativity increases primarily as A0-B1− frequency difference decreases, consistent with Meinel’s 1937 experiment for too-thick/too-thin plate thicknesses, plus sound post removal and violin octet baritone results. The vibration→acoustic energy filter, FRAD, computed from shape-material-independent radiation and total damping, peaks at the critical frequency fcrit, estimated from a free-plate mode by analogy to flat-plate bending. Experimentally, fcrit decreased as this plate mode (and B1+) frequency increased. Simulations show that increasing plate thicknesses lowers fcrit, reduces FRAD, and moves the spectral balance toward lower frequencies. Incorporating string→corpus filters (including bridge versus bridge-island impedances) provides a model for overall violin radiativity. This model—with B1 and A0-B1 couplings, and fcrit (computed from a free-plate mode important to B1) strongly affecting the lowest and highest parts of the radiativity profile—substantiates prior empirical B1—sound quality linkages.