* Volume: Electric guitars and basses are typically amplified because they are not loud enough to be heard over a drum set and other instruments in a live setting. Amplification allows the guitarist or bassist to control the volume of their instrument and to be heard clearly by the audience.
* Tone: Amplification can also be used to shape the tone of an electric guitar or bass. Different amplifiers and effects pedals can be used to create a wide variety of sounds, from clean and pristine to distorted and heavy.
* Feedback: Amplification can also be used to create feedback, which is a high-pitched ringing sound that occurs when the amplified sound of an instrument is fed back into the instrument. Feedback can be used to create a variety of effects, from subtle sustain to wild and chaotic soundscapes.
Drums
* Volume: Drums are typically amplified in live settings to make them louder and more impactful. Amplification can also be used to balance the sound of the drums with the other instruments in the band.
* Tone: Amplification can also be used to shape the tone of the drums. Different microphones and effects can be used to create a variety of sounds, from warm and round to bright and punchy.
Keyboards
* Volume: Keyboards are typically amplified in live settings to make them louder and more easily heard over the other instruments in the band. Amplification can also be used to balance the sound of the keyboards with the other instruments.
* Tone: Amplification can also be used to shape the tone of the keyboard. Different amplifiers and effects can be used to create a variety of sounds, from warm and mellow to bright and sparkly.
Other Instruments
In addition to guitars, basses, drums, and keyboards, a variety of other instruments can be amplified in a rock band setting. These include:
* Saxophones
* Trumpets
* Trombones
* Flutes
* Clarinets
* Violins
* Cellos
* Double basses
The decision of whether or not to amplify an instrument in a rock band setting depends on a number of factors, including the volume of the instrument, the tone of the instrument, and the overall sound of the band.