Watch the Bus Hair: Overview online guitar lesson by Jon Finn from Improv Target Practice
Here, the chords, scales and Target Notes are shown, described and demonstrated for "Bus Hair Solo Section". Even though the first chord is C9, the overall key is G (in a bluesy sort of way). Again, the Eb9 chord in this is treated similarly to the Bb7 in "This Two". Eb9 uses either Eb lydian b7, or G minor Pentatonic b5. It's the same relationship. I tend to think of it as "minor pentatonic b5 from the 3rd of the chord" if that makes sense. Learn both the scales and their pentatonic counterparts. In particular, pay attention to the notes that changes when movinng fromm one chord to the next. Again the target notes tend to highlight this motion.