Equipboard's gear archive is collaboratively built and maintained by fellow music lovers like yourself. Anyone can submit gear and equipment to artists. Joining Equipboard also allows you to create your own list to track the gear you have and want, and follow artists like Jack Bruce to never miss gear updates.
On this page of Jack Bruce's official site, it says, "Though trained on the upright bass, Jack Bruce took a liking early on to small, short-scale electric basses. One of his first was the Fender Bass VI, a 6-string bass tuned EADGBE like a guitar, but one octave lower."
The source and notes on this submission are correct.
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