Make a generalization by giving three key ideas about chance music and electronic music

Chance music is made randomly by using different methods, such as dices or cards. It also includes randomly performing a song. Chance music has been used for classical musicians since the 20th century. Electronic music, however, needs to be planned. It is made with electronic devices. It also broadened the limits of sounds on compositions.

Explanation: Chance music and electronic music have some things in common, however, they are distinct from each other. Chance music is the process of randomly creating melodies by using different methods such as computer programs, dices, etc. Performers often use this technique when they improvise on stage. This process was used in businesses since the 20th century.

On the other hand, electronic music needs to have a previous idea. There are electronic songs made by chance procedures, but most commonly, that genre requires planning. It is made by electronic elements, such as speakers and keyboards. The creation of this genre expanded the variety of sounds available for songs.