A combination of pitch and duration. The element that makes the direct appeal or can be considered as the theme of a composition
Pitch
The highness or lowness of a tonal sound. It is a physical principle that the faster the vibrations are the higher the pitch will be.
Tonality
The sense of a note being a reference point. This note is called atomic or tonal center. In here one particular pitch receives more emphasis than the others.
Duration
The length of the time the vibrations is sustained this becomes one of the bases of rhythm.
Tempo
Determines the speed of the beats in the measure, their duration in actual time. Music may move at a fast, moderate, or slow speed, and in varying degrees.