A guitar technician (or 'guitar tech') is a member of a music ensemble's road crew who maintains and sets up the musical equipment for one or more guitarists during a concert tour.uitar techs learn their craft either on the job, by working in a range of music, sound engineering, and instrument repair jobs; by completing a guitar repair program at a college or lutherie school; or from a combination of these two routes.
Common causes of pain in the big toe include gout, a bunion, a claw toe, an ingrown toenail and a turf toe, according to WebMD. Osteoarthritis of the big toe is another common cause of pain in the big toe, notes Healthline. Keep Learning.
Quick Answer. Causes of sharp toe pain include medical conditions such as gout, Mortonâs neuroma and diabetic neuropathy, according to Healthgrades. Gout is a painful form of arthritis caused by a buildup of uric acid in the body, notes the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Continue Reading.