Biedermann rhymes with:
biderman, biderman, cryderman, leiderman, niederman, schneiderman, weiderman, aderman, alderman, anderman, biderman, biederman, bonderman, cryderman, federman, felderman, geldermann, gunderman, halderman, helderman, hinderman, holderman, kinderman, lederman, leiderman, lenderman, liederman, linderman, niederman, readerman, ruderman, schneiderman, soderman, sonderman, strawderman, suderman, sunderman, weiderman, wilderman
Biedermann sounds like:
bathroom, batterman, bedroom, biderman, biederman, bitterman, bittermann, buitron, buttram, buttrum