Philharmonia rhymes with:
harmonia, harmonia, harmonia, harmonia, omonia, adonia, amazonia, ansonia, antonia, caledonia, colonia, cydonia, diaphonia, donia, estonia, gastonia, gonia, harmonia, idonia, latonia, macedonia, madonia, new-caledonia, omonia, patagonia, petronia, rondonia, sidonia, sinfonia, slavonia, slovonia, sophronia, tonia, vernonia, vidonia
Philharmonia sounds like:
palermo, pelerin, pellerin, playroom