Dexter Roundhouse will host another open mic night and jam session on Saturday, May 4 with a variety of family friendly music, comedy and other acts. Doors open at 6 p.m. with the show beginning at 7 for a free will offering. Funds raised will go toward the ongoing rehabilitation of the more than 100-year-old building. For more information or to sign up as a performer, contact Teresa at 515-473-2425.