you should be able to simply type "urpmi museek" without the quotation marks, in a terminal window as root.
If it does not find that software it is because it is in the PLF repository, and you don't have your internet software sources configured. If that is the case, simply go to
http://easyurpmi.zarb.org/ and follow instructions there. After that, try above command again and it will install for you.