That’s where [Matthew] comes in. He’s built a foot pedal controller so his old man can change up those sweet sounds on the fly. Guitar Rig 5 has the ability to change presets with key presses.

This takes care of all the audio processing, but the hard work for a guitar pedal is actually the enclosure and mechanicals – it’s a hard life for stage equipment. For the foot pedal input ...

New guitar tones can be downloaded into the device, where they run as software rather than as analog electrical circuits in an amp or foot pedal. In other words, the Spark 2 is the latest example ...