Edirol SD Editor software for use with the Edirol SD-90 StudioCanvas Sound Modules. The SD Editor allows for extensive and convenient control of the SD-90 module. The SD Editor is designed to assist in creating patches for the SD-90 & taking extremely precise control of sound contours. This powerful software also allows the user to copy system exclusive messages for the SD-90 into a sequence so each tone can be loaded at the beginning of a song or changed during a sequence.