Join the Midi Revolution Spring 1985 Cherry Lane Technologies Catalog. Illustrated with screen shots. Software ran on Apple and PC computers. "Texture" by Roger Powell, sequencer. "DX-Heaven" by R.J. Melvin. "CZ-Rider" by R.J. Melvin allowed users to draw Casio CZ synthesizer envelopes with a Joy Stick. Pitchrider hardware and software.