This is the Music Player from the Big, Bold and Brassy (BB&B) collection of skins [link]
. This and other skins in the collection were inspired by IllustratorG's Steampunk Construction Kits [link]
The skin uses Poiru's NowPlaying plugin and works with a variety of media players (e.g. Windows Media Player, AIMP, Foobar2000, iTunes, MediaMonkey, MusicBee, Media Player, Classic, WinAmp, Spotify, TTplayer, VLC, Zune, etc.). The full list of supported players can be found here [link]
. You'll need to set the PlayerName=??? on line five of the .ini file.