[quote name='YouMa' post='512863' date='Jun 13 2009, 04:51 PM']I know it sounds stupid,but are you just playing from tab? and copying basslines by ear or can you improvise ,you will need to be able to this to have a proper jam,i would say this is the turning point for guitarists and bassists.Once you have learnt to use a few well known scales and modes and how to apply them you can get by in most band situations,and construct your own lines.[/quote]
I'd kinda agree with that bit about learning modes n scales n that.
I'm awful at theory, i did a bit when i played the cornet but when it comes to jamming i just do what 'feels' right.
People often say 'what key are you playing in' and i have absolutly no idea.
My point is that either jam so you can just 'feel' what's good and bad or learn the modes and then fit it in with the improv. part (which makes more sense if you're gonna try and go up to other musicians n ask to jam, whereas i've been playing with the same people for years so then know i dont have a clue about theory).
I did once play with another group of people and they tried to get me to play in a key and i had no idea what they were on about, which didn't give the best impression. Though they were also playing jazz, which sounds good but i hadn't really played any before so yeah...