License:CC-BY

Old style marking of a CC-BY license:   

New style badge of a CC-BY license:

To learn about CC-BY as part of the Creative Commons licenses suite, see English Wikipedia

The CC-BY license claims that the creator(s) of a cultural work aka its licensor(s) shall be named as such in any shared copy or shared recording or actual public performance of the original work and any new variant of it. That's the meaning of the BY-clause.

How to badge a page that presents music under CC-BY license

Use the corresponding template, see template:cc-by