Complex sentence: KAV spent the majority of 2008 to 2011 in Los Angeles playing live and touring the US with DATAROCK & Esser & independently, including dates at SXSW 2010 & CMJ Music Marathon 2009 & 2010.
Split into simpler sentences: KAV spent the majority of 2008 to 2011 in Los Angeles. He touring the US independently & on a tour with DATAROCK & Esser, including dates at SXSW 2010 & CMJ Music Marathon 2009 & 2010.