With their bloody-good 'Bloody Bloody Andrew Jackson,' director-librettist Alex Timbers and composer-lyricist Michael Friedman have woven a scathing and topical satire on matters patriotic and political, and they've done it with the sound of emo rock, which might be hard to swallow for some traditional theatergoers. Downtown hit could prove a tough sell in a Broadway house, but the show's commercial producers have demonstrated keen marketing in the past, with diverse fare including 'Spring Awakening' and 'August: Osage County.' Word of mouth will loom large with this one.