Mind you, as I say all this stuff, I'm not the world's greatest soloist, and I'm a pretty lame-@$$ jazz bassist, BUT...
...actually this all ties into what I said in my first post. There are two things you can do to get more fluent and fluid when playing over changes in jazz tunes.
First, work on your arpeggios and their extensions, just keep adding a note, start with the triads (major, minor, diminished, augmented), then add the 7ths (maj7, 7, min 7, min7b5, fully diminished), then 9ths (don't worry, it's not THAT hard actually...), and so on with 11ths and 13ths.
The other useful thing to work on is to play through the chord changes on a tune using the "color" or "guide" tones. These are the tones that really define the quality of a chord, the 3rds, 7ths, 9ths, 11ths, and 13ths. Completely avoid the obvious notes, the roots and 5ths. This is really the opposite of doing what a bassist would typically do to outline the chords, which is using the roots and 5ths on strong beats (say 1 and 3 in 4/4), and the 3rds and 7ths on the weak beats (2 and 4).
Here's an example of #2 in action over a simple ii-V-I progression:
ii7 V7 I7
Chords: |Dmin7 G7|Cmaj7 |
Play: F C B F E
Or: C F F B C
(this just WON'T line up the way I want it to
...OK, imagine that the first 2 notes are under the Dmin7 chord, the 2nd 2 are under the G7, and the last one is under the Cmaj7...sorry)
As you can see, there are a lot of possibilities that are half step motion from one chord to the next. This is why they are called "guide" tones sometimes, one note "guides" you to the next. You can just keep adding the extensions as the chords demand, i.e. G9, you'd be able to use B, F, and A (the 9 of G) as your color tones. Then when you get comfortable with this, you just "fill in" around those tones, and viola'.....you're soloing!
(Well, at least you have a start on things).
Using reedo's tip of just playing the scale over several chords will work, but won't be as good sounding as playing as the chords are going by. Yes, Dmin7-G7-Cmaj7 are all "in" a C major scale, but if you just run a C scale over the chords, there won't be any real sense to what you've just played, it will just be a string of notes that may work well, or may not (for example, G over the Dmin7 may not be exactly a good note choice....or it may, depends on how things are going harmonically....if it's a Dmin11, it's a GREAT choice though
). Hope some of this helps....
[Edited by Gard on 09-22-2000 at 01:49 AM]