Complex sentence: On December 21,2009, Dark Tranquillity released the song "Dream Oblivion" and on January 14,2010, they released the song "At the Point of Ignition" from their ninth album, exclusively on their MySpace page.
Split into simpler sentences: On December 21,2009, Dark Tranquillity released the song "Dream Oblivion". On January 14,2010, they released the song "At the Point of Ignition" from their ninth album, exclusively on their MySpace page.