Ordering vocabulary terms by number of use

Hello,

First, excuse my very bad english.

I want to create a block displaying a terms of a vocabulary and ordering the list by the number of term use.

For example, a music type vocabulary :
Jazz : used by 10 pages
Rock : used by 2 pages
Blues : used by 5 pages
Pop : used by 4 pages

I want to display :
Jazz (10)
Blues (5)
Pop (4)
Rock (2)

The number is not obligatory.

So, i made a view => block
Filter : taxonomy vocabulary : System name = music type
Pagination : defined number = 5
More links : yes

And i make a view => page
Filter : taxonomy vocabulary : System name = music type
Pagination : display all
more links : no

How can i order my block and page by the number of term use ?

thanks