Texan choral rockHow many members make up The Polyphonic Spree? No one seems to know for sure. More than a dozen and less than 30 is about as close an estimate as you're gonna get. The amorphous group have come a long way in the past 15 years, and this anniversary tour celebrates their epic journey, starting with acclaimed debut "The Beginning Stages of….". Catch the Texan choral outfit at Highline Ballroom, where they'll be singing their hearts out as they perform a greatest hits set.