How does juxtaposition of light and dark relate to the theme of heart of darkness?

The opening section sounds marchlike, with accented beats and alternations between instrumental groups. eventually, a total change of character marks a short, new section. at approximately which time interval from the beginning does this appear?

Match each word to it's correct meaning. 1.)art 2.)digital 3.)digital art the creation of aesthetic objects, environments, or experiences that can be shared with others representation of information in ones and zeros, especially for use by a computer art created or modified on a computer by a computing process

The musical theme was first introduced by the woodwinds strings entire orchestra brass percussion