His legendary live shows described by NME as "crossing the line between music and bloodsport," experimental musician Lucas "Granpa" Abela, who also performs under the stage moniker Justice Yeldham, headlines a July 19 concert event at Rock Island's Roxx-Tox, the New York Times' David Rees describing the artist's live sets by saying, "One moment you hear John Coltrane playing a volcano, the next you hear a string section being squeezed through a toothpaste tube."