Jazz fusion band spyrogyragroup celebrates their 50th Anniversary at the Boulder Theater on Saturday, March 30th! Tickets go on sale 10am Friday at bouldertheater.com Want presale access? Subscribe to our newsletter on the bouldertheater.com Contact Us page to get the venue presale code sent to you on Wednesday around noon. #spyrogyra #boulderjazz #bouldertheater #boulderconcerts #bouldernightlife #z2entertainment