Music is ...
It is rhythmically based on the subdivision of time into fractions which must be done instantaneously, not working out on paper.
It is a precise, specific; it demands exact acoustics. A full score is a chart, a graph which indicates frequencies, intensities, volume changes, melody and harmony all at one with the most exact control of time.
Most of the terms are in Italian, German or French and the notation is certainly not English but a highly developed kind shorthand that uses symbols to represent ideas. Music is the most complete and the universal language.
It allows people to take all these dry, technically challenging techniques and use them to create emotion. That is one thing science cannot duplicate: humanity, feeling and emotion.
To perform requires fantastic coordination of fingers, hands, arms, lips, cheek and facial muscles. In addition, there is extraordinary control of the diaphragm, back, stomach and chest muscles, which respond to the sound the ear hears and the mind interprets.