- Refers to music instruments that produce sound electronically or produce its initial sound traditionally and then amplified electronically. Some examples of instruments that produce sound electronically are electronic organs and electronic synthesizers. Electric guitars and electric pianos are examples of traditional instruments that are electronically amplified.
In conclusion, when we speak of music instruments of the Western orchestra we refer to them as brass, percussion, strings and woodwinds. But if we want a more accurate classification of music instruments we refer to the Sachs-Hornbostel System which categorizes each instrument according to how the sound is produced and what material is used to produce sound.