Jack Hertz 975 Report post Posted February 17, 2017 The Delaydelus is a sampler with a built in delay. Each pin is a sample. The buttons are used to trigger whatever pin is connected to that buttons pin. For example if the first pin, P1, is connected with the alligator clip wire to pin “A”, the A button on the left will play that sample. View full synthesizer Share this post Link to post Share on other sites