It is the time element in music.

This is a musical aspect relating to the relative loudness or softness of music.

It is the degree of highness and lowness of a sound.

It is the structure of the music.

It is the color of the music.

It is a mark made on a surface and moves along, creating space as they go.

It gives life to an artwork and sometimes it is called hue.

It is defined by having both positive and negative areas in a work of art.