Hello there!
Im pretty sure its rhythm
Explanation:
1 : how many betas in treble clef 4/4 - 4 beats
2: how many beats in bass clef 2/4 - 2 beats
3: how many beats are there in each measure - 3 beats
4 - Quarter Note
5 - Quarter Note
6- Quarter Note
Timbre is the quality of a musical note or sound that distinguishes different types of sound production or musical instruments. Timbre is one of the basic elements of music. In timbre listening, focus is on texture and color of music and sound rather than perceiving pitch and harmony. Timbre is very much important for various musical instruments. The technique of timbre listening is used as either a conscious, intentional, or intuitive process. The technique is also used by students and scholars of music in aural skills acquisition. It is very easy to distinguish between the sounds of two different or similar musical instruments with the help of difference in the timbre of the sounds.