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1980
[https://en.wikipedia.org/wiki/Bass_guitar]
Ned Strindberg introduced a headless bass in 1979 and continued his innovations in the 1980s -
1960 guitar
[https://en.wikipedia.org/wiki/Bass_guitar]
They started making more guitars because rock became very popular -
1970
[https://en.wikipedia.org/wiki/Bass_guitar]
In 1970 they came up with the first maple wood Fret board -
Tuners
https://en.wikipedia.org/wiki/Bass_guitar
The tuning machines with spiral metal worm gears are mounted on the back of the head stock on the bass guitar neck. -
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D position
https://en.wikipedia.org/wiki/Bass_guitar
A bass guitar head stock with detuner set to D position -
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