2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/203397We argue that the low-lying scalar-meson nonet makes part of a subset of a family of infinitely many scalar-meson nonets, which in turn makes part of a family of infinitely many quark-antiquark bound states and resonances. We outline the properties of this subset.Talk presented at the workshop on "Scalar Mesons and Related Topics" honoring the 70th birthday of Michael Scadron, 11 pages, 7 figuresHigh Energy Physics - PhenomenologyThe spectrum of scalar-meson nonets in the Resonance-Spectrum Expansiontext