The DEMO version only includes 4 pages:
http://sebastienskaf.com
http://sebastienskaf.com/EmbeddedPlayer/v-2/album-1807609691/size-large/bgcol-ffffff/linkcol-7137dc/tracklist-false/artwork-small_ext_iframe.html
http://sebastienskaf.com/EmbeddedPlayer/v-2/album-1759290057/size-large/bgcol-ffffff/linkcol-0687f5/tracklist-false/artwork-small_ext_iframe.html
http://sebastienskaf.com/EmbeddedPlayer/v-2/album-417486552/size-large/bgcol-ffffff/linkcol-de270f/tracklist-false/artwork-small_ext_iframe.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
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