I like backing tracks and use them all the time in my practice.
http://www.youtube.com/watch?v=bUK5p...eature=related http://www.youtube.com/watch?v=lmsyY...eature=related
Minor pentatonic = R-b3-4-5-b7
Blues scale........= R-b3-4-#4-5-b7 Blues adds the blue note to the minor pentatonic.
C6 = R-3-5-6
C7 = R-3-5-b7
This may help
http://www.looknohands.com/chordhous.../index_rb.html
Notice the right hand side of the screen is full of other backing tracks. The ones with the key or chord progression shown are helpful, however, branch out to tracks where you have to come up with the key yourself.
http://www.youtube.com/watch?v=fX5USg8_1gA I hear E, assume a I IV V, and see where it takes you. Jamming over backing tracks will let you know what you do not know, i.e. what you need to study next.
If you need help with how to find the key just ask.
Deciding on what bass line riff to use......
Root nothing is always safe.
R-5 is safe unless you are over a diminished chord (b5) - and how often does that happen - LOL.
3 is the next logical choice, i.e. R-3-5 or R-b3-5 for a minor chord.
Sevenths - b7 for A7 and Am7 and just 7 for Amaj7 chords. R-3-5-7
Octaves R-3-5-8 creep into my stuff. It's a 4/4 beat R-3-5 needs one more note, try 8.
And then there is always the major pentatonic R-2-3-5-6 If I'm having trouble picking up the chord changes I use the tonic major (or minor if that is appropriate) pentatonic over the entire song ---- of course adapting to the rhythm and flow.
In case you have not already found it.
http://www.studybass.com/
Good luck.
