I'm curious about how many of the anti stand people can read actual written out music.
That would be an interesting poll, but some people's memories are just better than others. Mike Keneally got his gig with Zappa because he could play any of Zappa's extensive repertoire on guitar or keyboard, just from memory. He said that during rehearsals they'd get an idea to do a song that hadn't been played in 20 years or so, and Zappa would ask Keneally to show the band. He'd call it up from his memory banks and start showing the band how the piece went!
Meanwhile, Ron Carter has talked about how he can't remember what he played because jazz players were trained to forget in an attempt to create something fresh every night. Orchestral musicians that spend a lot of time reading also tend not to develop their memories.
Sometimes players in each camp cannot understand how the other functions.

