Canadian sound artist Heimbecker creates unusually spacious and unhurried montages. They may be reflections of his prairie upbringing, but they are assuredly products of his ‘sound sailing’ technique — locating open microphones in the sound space to generate frequency feedback loops as they are processed through digital delays. Voice and breath, gentle environmental sounds, small machines and a sense of humour are key ingredients. Much of it feels boundless, yet electroacoustic composition is rarely so habitable as here.