Barre chords may be physically difficult to master for the beginner, but conceptually they’re very easy to understand. A barre chord is like a “human
capo,” in that it allows you to play familiar basic chords all over the neck of your guitar to change keys and transpose music by using only a few forms.Unlike a capo (a mechanical device that wraps around the neck at a particular fret), a barre chord can move quickly and in time with the music.

Because barre chords contain no open strings, you can move them around the neck, allowing you to play any chord by using just one fingering form. The letter names of the chord change (from A to B to C, and so on), but the fingering and the quality stays exactly the same. Because all the strings in a barre chord are fretted, you have more control over the sustain (or ringing out) of the strings, which is why barre chords sound less folky or cowboy-like than open-position chords.

Barre chords are harder to play than open-position chords  and even harder on an acoustic than an electric guitar. But luckily playing these chords gets easier quickly, and before you know it, you can’t even distinguish between a barre chord and an open-position chord. You simply chose the right chord for the job, and if it happens to be a barre chord and not an open-position chord, you just play it and don’t even think about the agony you endured while learning it.

This type of guitar is normally played with a plectrum, and represents a transition from acoustic to electric guitar, because the guitar itself has some acoustic property although nowadays it is normally amplified. Although a component of the rhythm section of early jazz groups where its distinctive “chunk” sound would cut through and be heard without amplification, this guitar was also used extensively for melody and solo work, an example being the work of great players such as Django Reinhardt.

Distinguishing features include the violin-like f-holes which replace the circular sound hole of the traditional guitar. Often jazz guitars are larger in size than classical or acoustic guitars,and they usually have arched tops and backs, like a violin. This is said to improve their sound projection. Pickups are now built into the guitar, as are volume and tone controls.

The pioneering guitarist Les Paul was a technical as well as musical wizard. He is famous for multitrack recorded performances, and his developments on the instrument itself led to the extensive use of solidbody guitars with no innate acoustic resonance. Used for chords and lead in contemporary rock groups, the solid-body guitar has no sound until it is plugged into an amplifier. The electronic sound from pickups is processed in inventive ways for special effects, including deliberate distortion. The result is a new creation that has a fingerboard and strings but acoustically shares little with the traditional guitar.