  We do meson spectroscopy by studying the behavior of S-matrix poles in the
complex-energy plane, as a function of the coupling strength for triplet-P-zero
quark-pair creation. Thereto, a general formula for non-exotic hadron-hadron
scattering involving arbitrary quark confinement is used, which can be applied
to all flavors. We find two distinct types of poles, which we call
"confinement" and "continuum" poles, respectively. Together, they suffice to
understand the experimental meson spectrum.
