txtDefinition=The phase in a {\uldb sonata-form}{\v 96905} {\uldb movement}{\v 151907} that introduces the contrasting, or secondary, {\uldb key}{\v 85386} of the movement using one or more {\uldb themes}{\v 99088}. When a theme in a sonata-form movement is referred to as a \'93secondary theme,\'94 this is an abbreviation for \'93secondary-area theme,\'94 indicating that the theme first appeared in the secondary area.