The Fender and Gibson versions used bolt-on and glued-on necks.
The bass guitar (or simply bass) is a plucked string instrument similar in appearance and construction to an electric or an acoustic guitar, except with a longer neck and scale length, and typically four to six strings or courses.
The four-string bass is usually tuned the same as the double bass, which corresponds to pitches one octave lower than the four lowest-pitched strings of a guitar (E, A, D, and G).
The bass guitar was intended to appeal to guitarists as well as upright bass players, and many early pioneers of the instrument, such as Carol Kaye, Joe Osborn, and Paul Mc Cartney were originally guitarists.
Also in 1953, following Fender's lead, Gibson released the first short-scale violin-shaped electric bass, with an extendable end pin so a bassist could play it upright or horizontally. Also in 1958, Gibson released the maple arched-top EB-2 described in the Gibson catalogue as a "hollow-body electric bass that features a Bass/Baritone pushbutton for two different tonal characteristics".
Since the 1960s, the bass guitar has largely replaced the double bass in popular music as the bass instrument in the rhythm section.
While types of basslines vary widely from one style of music to another, the bassist usually plays a similar role: anchoring the harmonic framework and establishing the beat.The earliest production Jazz basses had a "stacked" volume and tone control for each pickup; this was soon changed to the familiar configuration of a volume control for each pickup, and a single passive tone control.The Jazz Bass's neck was narrower at the nut than the Precision bass — inches (44 mm) — allowing for easier access to the lower strings and an overall spacing and feel closer to that of an electric guitar, allowing trained guitarists to transition to the bass guitar more easily.It is played primarily with the fingers or thumb, or striking with a pick.The electric bass guitar has pickups and must be connected to an amplifier and speaker to be loud enough to compete with other instruments.In 1959 these were followed by the more conventional-looking EB-0 Bass.