The RD-1 Pitch Delay is a digital delay pedal designed to combine time based echo effects with pitch shifting. It allows the delayed signal to be shifted up or down in pitch while retaining clarity and rhythmic accuracy. The pedal provides controls for delay time, feedback, mix and pitch interval. It is intended for experimental textures as well as musical delay applications. The circuit is designed to respond accurately to playing dynamics and tempo changes. The RD-1 Pitch Delay is suitable for guitar and other electronic instruments.