Chuck Rainey played an old Fender Precision bass, which is the subject of much discussion here on other threads. He claims it's a 57' which it very well maybe, although it has a rosewood fretboard , So based on when he says he purchased it , it could be as late as a 60' or 61' , however that's neither here nor there. He had it strung with LaBella flatwounds (gauges .110, .085, .065, .045) ,and is quoted as saying he used that particular bass for 90% of the recordings he laid down throughout the 70s and the late sixties ; which makes sense because his tone is that trademark, deep, hollow, woody, Precision thump , with a perfect midrange "nose" that pairs well with everything, and lends an unmistakable rhythmic , percussive , and melodic sound to records, that you know as soon as you hear it.