There are a couple of "Ancestor's", notably: - ANCESTOR, a technical hardcore / metal band from the Ambler area of Pennsylvania.
A free 4-song EP was made available 8/30/09 and can be downloaded from www.myspace.com/ancestor (check blog for link) and www.weareancestor.wordpress.com. Tracks are also available here on last.fm.
Other releases: 5-song "Koalacaust" debut EP (available at www.ancestor.bigcartel.com), "Sweet Ink, Brah" was featured on a free digital compilation released via No Sleep Records.

Read more about Ancestor on Last.fm.