What is unplugged?

The term "unplugged" has come to refer to music that would usually be played on electrified instruments (such as an electric guitar or synthesizer) but is rendered instead on instruments that can be played without electricity, for example acoustic guitar or traditional piano, although a microphone is still used. In most cases, the bass (or bass guitar) is amplified, and a Hammond organ is sometimes used.

Unplugged is a style of playing music. It is the performance of music that is intended to be played on instruments that use electricity, using instruments that do not use electricity.
This allows you to touch the essential part of the original music and performance. In contrast to standing and swinging in a large stadium, performing in a small music hall allows the performers and audience to enjoy playing close together.