Welcome! This is the home of the musical collection. You can find certain buttons on the left side of your screen from here, if you ever need help, click home again to review this once again. Go out there and explore some of those buttons! A musical instrument is a device created or adapted to make musical sounds. In principle, any object that produces sound can be considered a musical instrument—it is through purpose that the object becomes a musical instrument. A person who plays a musical instrument is known as an instrumentalist.