If you're a fan of ex-Jamiroquai bassist Stuart Zender then you can't do much better than being a regular visitor to StuartZender.net.  Stuart recently gave an interview to Bass Magazine (a scan is available at the website) where he talks about a number of things including how some of the basslines to Jamiroquai songs were written...

Q: How do you write your basslines? SZ: To be honest with you, I don't think about it - I just do it. Most of the stuff is an accident, it just works out. In Jamiroquai, Jay would come up with some bassline ideas, and I'd further it from there. He's the most amazing songwriter and performer. I saw them without me for the first time about two years ago and it was a bit of a weird one! They were good, but it was different - I guess it's not the essence of what we were. 

The full interview can be read via StuartZender.net, and a couple of days ago Stuart posted a message on his MySpace blog where he gives his (honest) opinion on the interview and the rest of the magazine...