Which genre is characterized by electrically amplified instruments?

The genre characterized by electrically amplified instruments is popular music. This genre encompasses a broad range of musical styles, including rock, pop, electronic, and many others that emerged in the 20th century. The use of electric guitars, keyboards, and electronic effects is fundamental to the sound of popular music, allowing for greater volume, elaboration of sound, and innovative musical techniques.

In contrast, classical music traditionally relies on acoustic instruments, such as strings, woodwinds, brass, and percussion, without amplification. Folk music also predominantly uses acoustic instruments, often reflecting cultural traditions and storytelling. Opera, while it might incorporate some electronic elements in modern performances, primarily features vocalists accompanied by an orchestra of acoustic instruments. Thus, popular music stands out as the genre where electrically amplified instruments play a pivotal role in shaping its overall sound and appeal.