The Keeley 30ms Double Tracker can be used as a chorus effect. The 30ms lets you create more of a natural sounding chorus effect by making two voices sound slightly out of tune by what would be a normal amount in performance. This is a mono demonstration of the pedal with the Abbey Verb active, as it would come to you from our shop. Two additional voices are created and mixed with your guitar signal in Dimension Mode. You have control over the Tuning and Time in this mode. The Tuning knob is what makes the Keeley 30ms rather unique. By just altering the tuning of the other two guitars playing along you can get a really nice chorus effect. A really nice chorus effect can be made with just 4-10 cents Tuning and about 20ms of delay Time. In Abbey Mode you have a combined Rate and Depth Control with the Tuning Control. Only One additional voice is created in this mode. Here you can get a more conventional chorus effect. The oscillator in this mode has random artifacts to keep it sounding too predictable. Finally, in Slapback Mode you can get a wild sounding chorus if you adjust the time beyond 30ms and the tuning of the echoes to be greater than5 cents. Enjoy!