I’m sure they do make em. Just not those. Can’t properly sterilize plastic/rubber handles for medical applications, but I have a bunch of actual surgical tools (nurse retired) took from Germany and Switzerland so I have no doubt.
He definitely tore out frets and made a fretless out of it… but Jaco was also mental ill and extremely erratic. He’d play whatever was available. Often he didn’t have a bass, as he was homeless off and on. He’s show up to gigs without an instrument, the He’d borrowed basses (your bass) and then...
its a sine wave and the wood is irrelevant to its cycle, and are mathematically derived relative to the fundamental. Wood doesn’t impart any salt into the brew. The wood is just table for the hot food, it doesn’t contribute to the foods flavor, or temperature… I’ve seen boutique Strats made of...
Metal moving through a coil creates voltage. A string vibrates - oscillates in the pickup’s magnetic field. The wood is organic and non ferrous and unaffected by the magnetic resonance. It’s what makes surviving an MRI possible.
I’m having a great time with this. It’s tremendously entertaining watching you get sideways. That’s the best part of watching the blind leading the blind into hole.