Hi, all. I'm relatively new to jazz bass playing, and I have a question for you more experienced jazzers. I've been going to a local jam session lately, and working on my building my repertoire. Something that comes up a lot is tunes with Rhythm changes. Looking in the old Real Books, songs like Anthropology, Oleo, and Flintstones are all Rhythm songs, but each one has slightly different changes. My question is, when someone calls one of these tunes, should I know it's specific variations, or should I just think 'Rhythm changes' and wing it, meaning listen for what seems to fit everything else going on? Is there a real possibility of too much 'clash' if I'm playing a different variation? Does my question make any sense?