your answer is true.
"Another term for diegetic sound is actual sound"
A keyboard instrument is a musical instrument played using a keyboard, a row of levers which are pressed by the fingers. The most common of these are the piano, organ, and various electronic keyboards, including synthesizers and digital pianos. Other keyboard instruments include celestas, which are struck idiophones operated by a keyboard, and carillons, which are usually housed in bell towers or belfries of churches or municipal buildings.
The communial resting of birds ( rookery) is very crucial to the environment because of reproduction, more production, and more healthy plants
Cel, which is short for Celluloid, is a transparent sheet on which objects are drawn or painted for traditional, hand-drawn animation.