Ghost Jedi are seen giving a performance as a hologram at The Soundmound. Following the deaths of both Darth Vader and Palpatine during the Battle of Endor, a band hailing from Mrlsst rose to prominence; they were known as Ghost Jedi. The name was a tribute to the deceased Jedi Knight named Taj Junak. Their music, which included "Soldier's Life is a Sorry Thing," was composed by Rorax Falken and played by his pupils.
Furthermore, the band's members were secretly Falken's close associates, functioning as his operatives while he was involved in the Phantom Project.