WIKIPEDIA:

“ Larry Grenadier (born February 6, 1966 in San Francisco, California) is an American jazz double bassist.
His father, Albert, was a trumpet player, and his two brothers, Phil and Steve, would eventually play trumpet and guitar respectively. Grenadier too began on trumpet when he was 10 years old. His father taught him to read music and gave him his first lessons. A year afterward, when Larry Grenadier was eleven, he was given an electric bass guitar so that he and his brothers could play together as a band. He took a quick liking to the instrument, playing and practicing constantly. The three brothers performed current rock songs of the day at parties by learning the parts off of records. Larry’s older brother Phil began listening to jazz around this time, and slowly his listening habits filtered down to the younger brothers. Grenadier soon got hooked on jazz as well and began listening intently to jazz bassists like John Patitucci, Ray Brown, Charles Mingus, Brian Bromberg, Richard Davis, Paul Chambers, Wilbur Ware and Oscar Pettiford.
Hearing legendary upright bassists inspired Grenadier to borrow an upright bass and try to emulate what he was hearing on records. By the time he was 12, Grenadier [......] ”

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