![](https://www.cpr.org/cdn-cgi/image/width=3840,quality=75,format=auto/https://wp-cpr.s3.amazonaws.com/uploads/2019/05/Underground_Showcase.jpg)
The Underground Music Showcase starts Thursday on South Broadway in Denver. Hundreds of bands are playing over four days, and CPR's new music station is putting a lot of it on the radio. OpenAir's Alisha Sweeney talks about what's going on at this year's UMS. [Photo: Anya Semenoff for heyreverb.com]