Musical instruments – instruments used to extract various musical as well as non-musical unorganized sounds for the performance of a musical work. All musical instruments are primarily divided into three groups depending on where the sound comes from: strings, wind instruments and drums. The physical basis of a musical instrument that creates musical sounds is a resonator. For musical instruments that produce non-musical sounds, such as B. drums, the presence of a resonator is not important. Mechanical musical instruments have been known since the late Middle Ages. A collection of musical instruments took shape in the late 19th century. It currently has over 3,000 musical instruments.