🕶️ A view of its UI showing a photo of the rock band ‘Shearer’ in the background and 2 lines with broken lines in blue and red corresponding to the lyrics being sung and the height of the lines to the tones of the lyrics to be reproduced. Indicators on the right of the screen state ‘perfect! 📚️ UltraStar Deluxe (USDX) is a fork of Performous, and a libre, multi-platform Karaoke inspired by Singstar (Playstation only). Its features include real-time display of the difference between the pitch of your voice and that of the song, the ability to create karaoke from your own albums/CDs (unusual), and play for up to 12 players. Over 10,000 songs are available.