Arite - time to humble myself. I can jam up a storm and have been doing so for many many years, but on paper I still don't know what I'm doing, and I've comitted to knowing this stuff inside out. I'm working right with scales in the bass grimoire and it's got me confused. The minor scales: In practicality (not theory) what's the difference btwn the harmonic, the melodic, and the pantatonic? How would you know which to use, and are there musical styles which always use one, and rarely another, or are more common, etc? How come the minor scales I've been using aren't even in this book? The pentatonic comes closest but how come an A isn't included in the G minor scale? I'm confused. The A works -as do C# & F#. What scale is that? I'm sure I didn't make it up. In short, my rock and roll minor scale - in the key of G has always included G-A-A#-C-C#-D-F-F#. Please de-mystify this stuff for me - It's stuff I should have known 20 years ago. Thanks.