Hi all, i have found a site that may be know to some of you, its www.datamusic.org/ its free and i have now found a great new way for my practice, having just reached the tender age of 45 (physicaly) mental age around 20!! i was given my first MP3 player as a gift and put 50 or so of these jazz and blues backing tracks onto it, now, when im practicing i stick the earphones on and try to improvise to whatever comes up, it saves me keep going to the cd player, also, i find it great to just sit at work or wherever i am and make up tunes without disturbing anyone, it has helped me no end with my timing.
