Music is a form of communication that is found in all cultures. It is a language of sounds, linked to speech, which evokes its own concepts and images. Music is produced in time and space and is made up of elements thanks to which we may understand and enjoy it. Sound, time and space. The first element through which we may recognise musical sound is rhythm, which is the ordered sequence of sound and silence over time. Sound modulation. The second element of recognition is the alternation between high and low pitches. Melody emerges from the combination between these different sounds and rhythm. Sound colour, or timbre. This is the third recognisable element of musical sound. The sounds of voices and instruments are made up of proportional blends of partial sounds which enable us to identify their origins. Music arises as a need for expression in particular situations or to transmit emotions, feelings and to inspire human and divine beings to action and, in some cultures, to influence animals or natural phenomena. At the end of this section, the audio-visual projection‘“The shared origins of our music’ marks the beginning of the historical itinerary through the Museum.