"\n A performance event. \n It might include as agents performers, engineers, conductors, or even listeners.\n It might include as factors a score, a MusicalWork, musical instruments. \n It might produce a sound:-)\n " . _:vb949276 . . . _:vb949132 . "stable" . . _:vb949160 . . . . . _:vb949169 . . _:vb949129 . _:vb949140 . _:vb949202 . _:vb949156 . . . _:vb949131 . . "performance" . "2" . . _:vb949130 . . . . .