Little Rock’s Lo Thraxx has been talking up his next release, “$harkansas,” for some time now, but this morning he abruptly dropped a different mixtape altogether, “Deep Waters,” apparently a prequel or, in his words, “lay up drills” to warm up for the real thing (due out next month). Either way it’s good, and has maybe the best local album art I’ve seen all year. Lo will be at AC3 in Atlanta in October, and will be on a micro-tour with YGOA, Taylor Moon and Vile Pack this fall.