Clarence Leonidas "Leo" Fender (August 10, 1909 - March 21, 1991) was an American inventor who founded Fender Electric Instrument Manufacturing Company, or "Fender" for short. In January 1965, he sold the company to CBS and later founded two other musical instrument companies, Music Man and G&L Musical Instruments. The guitars, bass guitars, and amplifiers he designed from the 1940s on are still widely used: the Fender Telecaster (1950) was the first mass-produced solid-body electric guitar; the Fender Stratocaster (1954) is among the world's most iconic electric guitars; the Fender Precision Bass (1951) set the standard for electric bass guitars, and the Fender Bassman amplifier, popular enough in its own right, became the basis for later amplifiers (notably by Marshall and Mesa Boogie) that dominated rock and roll music. Leo Fender was inducted into the Rock and Roll Hall of Fame in 1992--a unique achievement given that he never learned to play the instruments that he made a career of building.
During this time, Fender also tackled the problems experienced by players of the acoustic double bass, who could no longer compete for volume with the other musicians. Besides, double basses were also large, bulky, and difficult to transport. With the Precision Bass (or "P-Bass"), released in 1951, Leo Fender addressed both issues: the Telecaster-based Precision Bass was small and portable, and its solid-body construction and four-magnet, single coil pickup let it play at higher volumes without feedback. Along with the Precision Bass (so named because its fretted neck allowed bassists to play with 'precision'), Fender introduced a bass amplifier, the Fender Bassman, a 25-watt amplifier with one 15-inch speaker (later updated to 45 watts and four 10-inch speakers). 1954 saw an update of the Precision Bass to coincide with the introduction of the Stratocaster. Incorporating some of the body contours of the Stratocaster, the update also included a two-section nickel-plated bridge and a white single-layer pickguard. In June 1957, Fender announced a redesign of the Precision Bass. The remake included a larger headstock, a new pickguard design, a bridge with four steel saddles that could be individually adjusted and a new split single-coil pickup. This proved to be the final version of the instrument, which has changed little since then. In 1960, rosewood fingerboards, wider color selections and a three-ply pickguard became available for the P-Bass. 1960 saw the release of the Jazz Bass, a sleeker, updated bass with a slimmer neck, and offset waist body and two single coil pickups (as opposed to the Precision Bass and its split-humbucking pickup that had been introduced in 1957). Like its predecessor, the Jazz Bass (or simply "J-Bass") was an instant hit and has remained popular to this day, and early models are highly sought after by collectors.

Q: What his role with jazz?
A: tackled the problems experienced by players of the acoustic double bass,
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Jazz Bass (or simply "J-Bass") was an instant hit and has remained popular to this day, and early models are highly sought after by collectors. In June 1957, Fender announced a redesign of the Precision Bass. 1954 saw an update of the Precision Bass to coincide with the introduction of the Stratocaster. Like its predecessor, the Jazz Bass (or simply "J-Bass") was an instant hit and has remained popular to this day,
Like its predecessor, the Jazz Bass (or simply "J-Bass") was an instant hit and has remained popular to this day,