I’ve heard Phil Keaggy twice in concert. The first time was with a band in an enormous Baptist church in downtown Wichita with classic bad acoustics — you could only hear half of what was played, but you heard that half twice. He still sounded pretty good. The second time was with just his acoustic guitar and a looper pedal in a proper auditorium. That sounded better. He doesn’t really need more than six strings and nine fingers.