UCallista ungumphathi wohlalutyo lwemali kwiColorado Access. Uhlale eColorado ukusukela ngo-2009 kwaye uchitha ixesha lakhe elininzi ngaphandle komsebenzi nomyeni wakhe nabantwana bakhe ababini, benyuka intaba, bekhwele ibhayisekile, bedlala ivayolin kwiDenver Philharmonic Orchestra. Ungomnye wabo “bantu basePeloton abakruqulayo,” kwaye uyonwabela iiprojekthi zobugcisa ezifana nokunitha kunye nokunqumlana.