There are a lot of isolated bass lines that you can hear via YouTube and so on. But there are a lot of isolated bass lines that are floating around the Interwebz that aren’t on Youtube.
So I’m planning to put up a few – especially ones that I think will be of interest to ‘working’ or gigging bass players. Here’s Stevie Wonder’s great synth bass line to Superstition (and it’s in Eb!):