Instrument sound is the source of sound for recording sound. It is formed by humans manipulating various musical instruments and is an important component of the sound world.

Various sounds from nature can be combined, and non natural sounds can also be combined. Nature sound can also be combined with non nature sound. From this, it can be seen how broad the artistic world of composite sound is.
Spielberg was a genius in the use of composite sound. Whether it's the half human, half demon version of "Monsters" or the animal disaster version of "Jaws", the surrealist version of "Aliens" and the realistic version of "Saving Private Ryan", the supernatural versions of "Third Class Contact" and "Jurassic Park", Spielberg's sound system has been used very successfully. His film won six Oscars for Best Sound, which is a "sound revelation" to today's directors.