How do you appreciate efforts of a must to produce melodious sound using a musical instrument by simultaneously controlling frequency and amplitude of the sounds produced by it.

Explanation

1) The sounds which produce pleasing effect on the ear are called musical sounds.
2) Any instrument which produces musical sound is called musical instrument.
3) The persons who plays a musical instrument to produce melodious sound is called a musician.
4) The musician must have control on breathing concentration on the output of the sound, which is a very hard task.
5) For this the musician needs a lot of practise.
6) With the musician's practise and knowledge over musical notes only we can hear melodious sound otherwise it could only be a noise.
7) Hence the efforts of a musician are highly appreciable.