Shockwaves Music is a music retailer for any of your instrument and sound equipment needs. We currently stock guitars, amps, drums, keyboards, and accessories. We also do repairs on most equipment. Lessons are also available in guitar, bass, piano, and drums.. Shockwaves Music is a music retailer for any of your instrument and sound equipment needs. We currently stock guitars, amps, drums, keyboards,and accessories. We also do repairs on most equipment. Lessons are also available in guitar, bass, piano,and drums.