There are 243 additional bands that have been announced in Round Two on November 18, 2014 as showcasing artists for the South by Southwest (SXSW) Music Festival to be held in Austin, Texas from March 17-22, 2015. There is also a link for each one with more details, including their music and other band information.
With the 170 bands already announced in Round One on October 22, that makes a total of 413 bands so far. In recent years, over 2000 bands have performed each year, so this is just a partial list, and more will be announced periodically as they register.
Here’s an overview video which covers all the SXSW interactive and film conferences, as well as the music festival.