The Patient Zeros originally hail from Lansing, Mich., but moved to Denver in 2012. The blues-rock trio last year released the album "Sirens Calling" and is scheduled to perform at Denver's Underground Music Showcase in July. They band also plans to release a new EP in August. The Patient Zeros stopped into the CPR Performance Studio to play some songs from "Sirens Calling" and some older songs. The members also spoke with Alisha Sweeney about establishing themselves in Denver's music scene, the recent addition of bassist Michael Raymond and tackling relationship issues with their lyrics.