Music defines & accompanies us in our journey of life. It is different from culture to culture. The word music can be defined in many words but scientifically it is an organized movement of sounds through a continuum of time. Music plays a role in all societies, and it exists in a large number of styles
The root of music is vibration. Music needs physical objects wich vibrates, a median wich is air and an ear to listen. Without people to hear music, music will not exist.
When you listen to music, you hear the basic notes played and something called overtones. An overtone is simultaneous notes played at the same times.
Music must contain pitch; wich is the highness or lowness of a musical sound. Amplitude wich is the characteristic of sound waves that we perceive as volume. Timbre or sound quality, which is the musical element that accounts for the differences in the characteristic sounds of musical instruments.
And duration wich is how long a sound lasts.
Music in the western society can categorize into four categories. Melody, rhythm, harmony and texture. Melody is a succession of pitches; it can be composed and improvised. Rhythm is the time elements in music. It can be free without a beet like traditional Japanese music. Harmony wich is an organized succession of notes of specific pitch and duration. Finally, texture wich is all of the elements of music combined to produce music. It can be complex like African drumming music and as simple as someone's voice.
The environment affects the way music is produced. Example like industrialization, social dissolutes and of cause wars all affect the way music is produced. In wars, music the music listened will be sad music. In a social dissolute like, American hippies wanting peace...