With her music described by A Jazz Noise as "a raw, abrasive, oppressive, and thrilling journey,” Chicago-based improviser, composer, educator, curator, and woodwind specialist Emily Rach Beisel performs at Rock Island venue Rozz-Tox on May 7, the evening also boasting a set with the Denver-based musicians of A Light Among Many, self-described as delivering "suffocating, sprawling soundscapes of drone and doom metal."