MUSIC: If you see a lot of guitar-toting ladies and gents around the Puck Building right now, that's because CMJ has officially begun. This means there is a ton of music happening (including at our own Gothamist House starting tomorrow). Tonight we suggest hitting up Brooklyn Vegan's show at Bowery Ballroom: Voxtrot, The Rosebuds, Dean & Britta...and so many more. 6pm // Bowery Ballroom [6 Delancey St] // $16, or free with badge THEATER: A.R.......