i've just recently got into using soundfonts, this is probably something that is easily done but i've been searching the web and haven't found any answers on how to do it, i downloaded this file
http://www.sf2midi.com/soundfonts/file-detail/casio-cz-101-sf2-680.html, i'm using garageband and a midi keyboard, i know how to use soundfonts in garageband but this file evidently since it is the factory presets of the cz-101, has multiple instruments? does anyone know how to access these?