At first nothing obvious changed. She loaded a dusty vocal track, slapped on a dusty plate reverb from r2r33, and noticed something else: the tail of the vocal bloomed into harmonics she hadn't recorded. A faint counter-melody unfurled in the stereo field, like a hidden echo remembering a different lyric. The compressor breathed with the rhythm of her heart — not metaphorically; she tapped, and the threshold blinked in time.