SXSW, which happens March 17-22 in Austin, TX, has announced its third round of 2015 showcasing artists. (Here's round 1 and round 2.) It's a big update, with over 500 new additions, including Amason, Frog Eyes, Palma Violets, Girl Band, Pity Sex, Sheer Mag, Kate Tempest, THEESatisfaction,…
