Abstract: The present invention relates to a pedal resonance effect simulation device for digital pianos consisting of a resonance effect circuit for the simulation of the resonance effects in the strings of a traditional mechanical piano, coupled with a reference model which varies the resonance contributions of the various strings, which are equivalent to those of a mechanical piano, by using delay lines with a method which considers the position of the resonance pedal pressed by the performer upon reproduction.

Abstract: Classic organ sounds are produced by selecting plural loops of predetermined sound components, and combining the components in accordance with parameters readily adjusted by an operator, which parameters are maintained separately from the musical notes which are being sounded at any given time. In this way, the finishing of the organ sounds may be tailored to circumstances, such as particular organ sound qualities, particular organ styles and the like. Plural microprocessors allow organ sounds to be produced, and varied, in accordance with any desired finishing, under operator control.