Now live on the site! This particular file can be generated at https://www.furbnet.com/karaoke78730_Calling-America.html

Any other MIDI (with lyrics) can be used as well, just substitute "midi" for "karaoke" in the MIDI page's URL.

Soon, supported MIDIs will have a button on their page to open the karaoke, and an icon next to them in listings.