Spark is a VST/AU/AAX plugin that models four Marshall® tube amplifiers, four guitar cabinets, four overdrive pedals and a set of the most common spatial effects. Guitar Pro 8 is the new version of Guitar Pro software. Guitar Pro is the best N#1 tab editing software. Includes new features for score editing, like nested tuplets, a new command palette, design mode improvement, new transpose tools, focus mode, and many other small feature improvements.