Wisconsin musician Jon Mueller is inquisitive. Open to pushing his experience and his limits, he's demonstrated the many sides of himself both as a solo performer and as a key member in mind-bending projects like Mind Over Mirrors, Volcano Choir, and Death Blues, or by running his shop of curiosities Within Things. On his new four-piece collection Family Secret, the experimental musician maintains a meticulous, sustained tension, re-engaging with a technique he developed as an adolescent - reframing the environs of creation, and naturally altering his perception, through changes in light and space - while also considering the role of family and divorce. Gentle, metallic bellows fade in and shifting timbres immerse the listener, each wave of sound folding atop the previous. Mueller has created a room, or at least an enclosure.