Walrus Audio Julia Chorus/Vibrato – Julia is an all analog chorus and vibrato. Where most chorus/vibe pedals give you a toggle to flip between chorus and vibe, Julia offers a blend parameter to use up all the space in-between the two effects; moving from full dry, to chorus, to full vibrato. The Lag parameter sets the delay time of the modulation. You can manipulate rate, depth, and wave shape as well.