Complex sentence: Emerging as an indie music event, the Laneway Festival has grown rapidly in popularity, receiving favourable reviews in music press, and expanding to Sydney in 2006, Brisbane in 2007, Adelaide in 2008 and Perth in 2009.
Split into simpler sentences: Emerging as an indie music event, the Laneway Festival has grown rapidly in popularity, receiving favourable reviews in music press. The festival expanded to Sydney in 2006, Brisbane in 2007, Adelaide in 2008 and Perth in 2009.