"RDF Description of lt_artist_track #4" . . "performed {additional} {guest} {vocal} vocal on" . "has {additional} {guest} {vocal} vocal performed by" . "0fdbe3c6-7700-4a31-ae54-b53f06ae1cfa" . "lt_artist_track #4" . "Indicates an artist performed in a particular voice on this work. (Details)" . "vocal" . "vocal" . . "4"^^ . "0"^^ . "0"^^ . "1"^^ . "additional=0-1 vocal=0- guest=0-1" . "2"^^ .