A guitar tab is a system of notations, letters, symbols and other visual representations - instead of the traditional musical notation. Guitar tabs give directions to the player as to how to play a musical piece through a diagram of strings of the guitar.

Tablature consists of a diagram of strings of the guitar with finger positions indicated by numbers corresponding to the appropriate frets and sometimes with the numerical representations of the fingers. Guitar tabs are very important for those who are enthusiasts and are keen on learning new tunes and technicalities of guitar and especially those songs which have extensive guitar uses, both plucking and other types of fingering as well as lead parts.

A bass guitar is slightly different in shape from other guitars (rhythm guitar, classical guitar, Hawaiian guitar, etc.) A bass guitar is used for complementing and filling up the sound in an orchestration or a band and it goes in tune and rhythm with the drums and percussion. A bass guitars neck or fret board is much longer than the fret boards of any other guitars and it has four strings called the bass strings.

Nowadays tablatures, guitar tabs in particular, have vertical lines which represent the strings of the guitar (no matter what kind of guitar it is) horizontal lines for the frets, and dots signifying the position of the figures. In the case of a bass guitar there will only be four horizontal lines signifying the four strings of the bass guitar. A bass guitar can never be played with a spectrum (an object used to strum the strings of the guitar). Instead, it is played with figures just by plucking. Therefore, a bass guitar tablature is different from those of the rhythm or the classical guitars.