 When a regional bar band looks for a guitar tech for a summer nightclub tour, there may many guitar techs who could meet the skill requirements.However, if an internationally known 1960s-style acid rock touring act with a celebrity lead guitarist goes on a major tour, there may be only a handful of guitar techs who have the unique combination of skills for this position.Bass guitar technicians (or "bass techs") perform the same functions for a bass guitar player.