I can't get my head around playing free jazz.
It just feels like I'm trying to play something and at the same time convince the listeners that it does actually make sense.
Perhaps it's this ability that makes a great free jazz player?
maybe this will help you--Free jazz makes no attempt to convince the listener of anything--they are just doing their thing and if anyone wants to listen, fine, and if not, whatever.
I think the free jazzers who have achieved any kind of popularity is based on luck--the right people showing up at a show
Well - if you are playing bass in a symphony orchestra, you really have no freedom - you have to play exactly what the other basses are playing, even down to whether it is an upstroke or downstroke of the bow!
In Free Jazz you have complete freedom - although I agree on holding the audience's attention - that's still a huge difference in levels of freedom between two genres of music!
I am thinking beyond what the individual song calls for--I am more thinking in terms of what the average song in any given genre allows for and what the audience can bear as far as freedom (more of a songwriting perspective). In that same classical song in your example, maybe all the basses have to do an upstroke at the same time, in the same way that the bass player in a jazz combo can't play open E whole notes with a bow all the way through giant steps, or at least from an audience's perspective, you will be just as unlistenable in both situations to both respective audiences.
I remember back in college my combo participated in a jazz competition and while my combo wasn't playing we checked out some other school combos and I checked out a cool free jazz group--at the end the judge pointed out that the drummer was holding his sticks with a fist grip--the judge said that was stupid but the guy said the song was to represent anger, and that was his way of "punching" the drum. However, the trumpet player was just playing random bebop riffs over the top of it, which the judge pointed out as liking--so even in free jazz, there are rules that you should adhere to if you wanted people to actually come to shows lol
In free jazz you can do whatever, but you aren't doing it for an audience, or you are doing it for an audience who wants to hear that, so it turns into two different situations: "Can you do it" vs. "Can you get paid to do it"
One thing I have found out in the jazz world (also with every other genre) is that you still have to stick to a lot of rules if you want to get the paying gigs