Guitars are recognized as specific of the primary instruments in blues, country, flamenco, quarry music, and divers forms of pop. They can also be a solo classical instrument. Guitars may be played acoustically, where the tone is produced by vibration of the strings and modulated by the excavated body, or they may rely on an Fender Custom Guitars amplifier that can electronically manipulate tone. Such electric guitars were fascinating in the 20th century and continue to have a profound influence on hip culture.

• There are any divergent fret gauges, which can be fitted according to player preference

• Among these are "jumbo" frets, which have much thicker gauge, allowing for use of a slight vibrato technique from pushing the string down harder and softer
• "Scalloped" fretboards, where the copse of the fretboard itself is "scooped out" between the frets allows a melodramatic vibrato effect
• Fine frets, much flatter, allow a ideal inferior string-action but bid other conditions such as curvature of the neck to be well maintained in disposal to prevent buzz
• Frets worn down from excessive use can be replaced or, to a certain extent, re-shaped as required.