is well worth any time you elect to spend there. IMO there are no negatives at that site, its all good.
As to theory pertaining to bass. Any of Ed Friedland's books. Ed has a talent for writing, he puts words together in such a way that we all understand what he is saying. His book Building Walking Bass Lines is IMO the best book on that subject. Go to Amazon and do a search on Ed Friedland. Pick which ever you think you need. For example" http://www.amazon.com/s/ref=nb_sb_no...s=ed+friedland
For pure theory go here. http://www.billygreen.pwp.blueyonder...20Advanced.pdf
I just started a new book "Bass Styles Made Easy" by Chris Matheos. It lists basic bass lines for several styles of music. For example here are a few of those lines:
- Rock & Roll R-3-5-6 or R-R-3-3-5-5-6-5
- Jazz Swing R-2-3-5
- Funk b7-7-R-b7-7-8-5-b7
- Country 8-5-8-5 instead of the ole classic R-5-R-5.
You might keep this one in mind as a follow up to "Building Walking Bass Lines".
The book "Bass Guitar for Dummies" is a good starter how to play bass book. I'm a pattern guy and got most all my patterns from "Dummies".
And then learn how to play using fake chord sheet music. Why fake chord? Because most bands pass among themselves fake chord sheet music, you are expected to be able to play from fake chord.