Tortues vapeur (Steamed Turtles) is a digital release from Montréalers Susanna Hood and Martin Tétreault, who really are performance artists more than musicians. The sounds they produce are primarily of electroacoustic provenance. Although the six tracks are given titles, they provide no guidance to their content. Each is an amalgam of noise, rhythms, textures, voice and snippets of previously recorded material, creating a sound-garden to be tilled or left fallow as the listener chooses. So regardless of how this process is described, it’s certainly not for the faint of heart.