reverb in reverse

Reverb that arrives before the note. SYCAMORE cuts what you play into windows, turns each one round, runs it through a room whose echoes fall in pitch, and turns it back, so every note swells in out of its own reverb. It's the old studio trick of reversing the tape to record the reverb, done live to whatever you patch in. FLIP leaves the windows backwards, and LEARN records a take of up to 16 seconds and plays it back to front.

https://daylightnoise.com/sycamore/