Sanjeev Nanda defines music in own way. what he is feeling about music. There is also mention about music Elements here.

1. Music is an form and
cultural activity whose
medium is sound
organized in time.

2. As a form of art or
entertainment
It is As a form of art or
Entertainment

3. "Composition" is the act or put into practice of creating a song,
an instrumental music part, a work with both singing and
instruments, or another type of music.

5. Thank-you