DOM7 chords are made up of the scale tones 1-3-5-b7
taken from the relative mixolydian mode
1-2-3-4-5-6-b7-8 (scale tones)
So for Eb7
Chord tones are Eb(1)-G(3)-Bb(5)-Db(b7)
Scale tones are Eb-F-G-Ab-Bb-C-Db-Eb
To get started put one of these chord tones on beats 1 and 3 in
each measure and use either a scale tone or chromatic passing
tone (half step above/below the next chord tone) on beats
2 and 4. Keep it simple at first using a lot of 1's and 5's as
your chord tones.
Use a nice full legato sound and let each note hang until
the next. Time, feel and tone are just as important as
note choices when walkin!
Sound more complicated than it is.... Best bet is to put
learn some Ray Brown or Ron Carter lines ,,, It will give
you all the education you'll need!
Best of luck,
Donn